diff --git a/clippy_lints/src/implicit_saturating_sub.rs b/clippy_lints/src/implicit_saturating_sub.rs
index 5f931a0ad..b57fe8dc4 100644
--- a/clippy_lints/src/implicit_saturating_sub.rs
+++ b/clippy_lints/src/implicit_saturating_sub.rs
@@ -158,9 +158,9 @@ fn print_lint_and_sugg(cx: &LateContext<'_>, var_name: &str, expr: &Expr<'_>) {
         cx,
         IMPLICIT_SATURATING_SUB,
         expr.span,
-        "Implicitly performing saturating subtraction",
+        "implicitly performing saturating subtraction",
         "try",
-        format!("{} = {}.saturating_sub({});", var_name, var_name, 1.to_string()),
+        format!("{} = {}.saturating_sub({});", var_name, var_name, '1'),
         Applicability::MachineApplicable,
     );
 }
diff --git a/tests/ui/implicit_saturating_sub.stderr b/tests/ui/implicit_saturating_sub.stderr
index 2eb2023b3..5bb9a6064 100644
--- a/tests/ui/implicit_saturating_sub.stderr
+++ b/tests/ui/implicit_saturating_sub.stderr
@@ -1,4 +1,4 @@
-error: Implicitly performing saturating subtraction
+error: implicitly performing saturating subtraction
   --> $DIR/implicit_saturating_sub.rs:13:5
    |
 LL | /     if u_8 > 0 {
@@ -8,7 +8,7 @@ LL | |     }
    |
    = note: `-D clippy::implicit-saturating-sub` implied by `-D warnings`
 
-error: Implicitly performing saturating subtraction
+error: implicitly performing saturating subtraction
   --> $DIR/implicit_saturating_sub.rs:20:13
    |
 LL | /             if u_8 > 0 {
@@ -16,7 +16,7 @@ LL | |                 u_8 -= 1;
 LL | |             }
    | |_____________^ help: try: `u_8 = u_8.saturating_sub(1);`
 
-error: Implicitly performing saturating subtraction
+error: implicitly performing saturating subtraction
   --> $DIR/implicit_saturating_sub.rs:34:5
    |
 LL | /     if u_16 > 0 {
@@ -24,7 +24,7 @@ LL | |         u_16 -= 1;
 LL | |     }
    | |_____^ help: try: `u_16 = u_16.saturating_sub(1);`
 
-error: Implicitly performing saturating subtraction
+error: implicitly performing saturating subtraction
   --> $DIR/implicit_saturating_sub.rs:44:5
    |
 LL | /     if u_32 != 0 {
@@ -32,7 +32,7 @@ LL | |         u_32 -= 1;
 LL | |     }
    | |_____^ help: try: `u_32 = u_32.saturating_sub(1);`
 
-error: Implicitly performing saturating subtraction
+error: implicitly performing saturating subtraction
   --> $DIR/implicit_saturating_sub.rs:65:5
    |
 LL | /     if u_64 > 0 {
@@ -40,7 +40,7 @@ LL | |         u_64 -= 1;
 LL | |     }
    | |_____^ help: try: `u_64 = u_64.saturating_sub(1);`
 
-error: Implicitly performing saturating subtraction
+error: implicitly performing saturating subtraction
   --> $DIR/implicit_saturating_sub.rs:70:5
    |
 LL | /     if 0 < u_64 {
@@ -48,7 +48,7 @@ LL | |         u_64 -= 1;
 LL | |     }
    | |_____^ help: try: `u_64 = u_64.saturating_sub(1);`
 
-error: Implicitly performing saturating subtraction
+error: implicitly performing saturating subtraction
   --> $DIR/implicit_saturating_sub.rs:75:5
    |
 LL | /     if 0 != u_64 {
@@ -56,7 +56,7 @@ LL | |         u_64 -= 1;
 LL | |     }
    | |_____^ help: try: `u_64 = u_64.saturating_sub(1);`
 
-error: Implicitly performing saturating subtraction
+error: implicitly performing saturating subtraction
   --> $DIR/implicit_saturating_sub.rs:96:5
    |
 LL | /     if u_usize > 0 {
@@ -64,7 +64,7 @@ LL | |         u_usize -= 1;
 LL | |     }
    | |_____^ help: try: `u_usize = u_usize.saturating_sub(1);`
 
-error: Implicitly performing saturating subtraction
+error: implicitly performing saturating subtraction
   --> $DIR/implicit_saturating_sub.rs:108:5
    |
 LL | /     if i_8 > i8::MIN {
@@ -72,7 +72,7 @@ LL | |         i_8 -= 1;
 LL | |     }
    | |_____^ help: try: `i_8 = i_8.saturating_sub(1);`
 
-error: Implicitly performing saturating subtraction
+error: implicitly performing saturating subtraction
   --> $DIR/implicit_saturating_sub.rs:113:5
    |
 LL | /     if i_8 > i8::MIN {
@@ -80,7 +80,7 @@ LL | |         i_8 -= 1;
 LL | |     }
    | |_____^ help: try: `i_8 = i_8.saturating_sub(1);`
 
-error: Implicitly performing saturating subtraction
+error: implicitly performing saturating subtraction
   --> $DIR/implicit_saturating_sub.rs:118:5
    |
 LL | /     if i_8 != i8::MIN {
@@ -88,7 +88,7 @@ LL | |         i_8 -= 1;
 LL | |     }
    | |_____^ help: try: `i_8 = i_8.saturating_sub(1);`
 
-error: Implicitly performing saturating subtraction
+error: implicitly performing saturating subtraction
   --> $DIR/implicit_saturating_sub.rs:123:5
    |
 LL | /     if i_8 != i8::MIN {
@@ -96,7 +96,7 @@ LL | |         i_8 -= 1;
 LL | |     }
    | |_____^ help: try: `i_8 = i_8.saturating_sub(1);`
 
-error: Implicitly performing saturating subtraction
+error: implicitly performing saturating subtraction
   --> $DIR/implicit_saturating_sub.rs:133:5
    |
 LL | /     if i_16 > i16::MIN {
@@ -104,7 +104,7 @@ LL | |         i_16 -= 1;
 LL | |     }
    | |_____^ help: try: `i_16 = i_16.saturating_sub(1);`
 
-error: Implicitly performing saturating subtraction
+error: implicitly performing saturating subtraction
   --> $DIR/implicit_saturating_sub.rs:138:5
    |
 LL | /     if i_16 > i16::MIN {
@@ -112,7 +112,7 @@ LL | |         i_16 -= 1;
 LL | |     }
    | |_____^ help: try: `i_16 = i_16.saturating_sub(1);`
 
-error: Implicitly performing saturating subtraction
+error: implicitly performing saturating subtraction
   --> $DIR/implicit_saturating_sub.rs:143:5
    |
 LL | /     if i_16 != i16::MIN {
@@ -120,7 +120,7 @@ LL | |         i_16 -= 1;
 LL | |     }
    | |_____^ help: try: `i_16 = i_16.saturating_sub(1);`
 
-error: Implicitly performing saturating subtraction
+error: implicitly performing saturating subtraction
   --> $DIR/implicit_saturating_sub.rs:148:5
    |
 LL | /     if i_16 != i16::MIN {
@@ -128,7 +128,7 @@ LL | |         i_16 -= 1;
 LL | |     }
    | |_____^ help: try: `i_16 = i_16.saturating_sub(1);`
 
-error: Implicitly performing saturating subtraction
+error: implicitly performing saturating subtraction
   --> $DIR/implicit_saturating_sub.rs:158:5
    |
 LL | /     if i_32 > i32::MIN {
@@ -136,7 +136,7 @@ LL | |         i_32 -= 1;
 LL | |     }
    | |_____^ help: try: `i_32 = i_32.saturating_sub(1);`
 
-error: Implicitly performing saturating subtraction
+error: implicitly performing saturating subtraction
   --> $DIR/implicit_saturating_sub.rs:163:5
    |
 LL | /     if i_32 > i32::MIN {
@@ -144,7 +144,7 @@ LL | |         i_32 -= 1;
 LL | |     }
    | |_____^ help: try: `i_32 = i_32.saturating_sub(1);`
 
-error: Implicitly performing saturating subtraction
+error: implicitly performing saturating subtraction
   --> $DIR/implicit_saturating_sub.rs:168:5
    |
 LL | /     if i_32 != i32::MIN {
@@ -152,7 +152,7 @@ LL | |         i_32 -= 1;
 LL | |     }
    | |_____^ help: try: `i_32 = i_32.saturating_sub(1);`
 
-error: Implicitly performing saturating subtraction
+error: implicitly performing saturating subtraction
   --> $DIR/implicit_saturating_sub.rs:173:5
    |
 LL | /     if i_32 != i32::MIN {
@@ -160,7 +160,7 @@ LL | |         i_32 -= 1;
 LL | |     }
    | |_____^ help: try: `i_32 = i_32.saturating_sub(1);`
 
-error: Implicitly performing saturating subtraction
+error: implicitly performing saturating subtraction
   --> $DIR/implicit_saturating_sub.rs:183:5
    |
 LL | /     if i64::MIN < i_64 {
@@ -168,7 +168,7 @@ LL | |         i_64 -= 1;
 LL | |     }
    | |_____^ help: try: `i_64 = i_64.saturating_sub(1);`
 
-error: Implicitly performing saturating subtraction
+error: implicitly performing saturating subtraction
   --> $DIR/implicit_saturating_sub.rs:188:5
    |
 LL | /     if i64::MIN != i_64 {
@@ -176,7 +176,7 @@ LL | |         i_64 -= 1;
 LL | |     }
    | |_____^ help: try: `i_64 = i_64.saturating_sub(1);`
 
-error: Implicitly performing saturating subtraction
+error: implicitly performing saturating subtraction
   --> $DIR/implicit_saturating_sub.rs:193:5
    |
 LL | /     if i64::MIN < i_64 {