diff --git a/Cargo.toml b/Cargo.toml
index 885b4a7b..965e218b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -80,6 +80,7 @@ deref_by_slicing = "warn"
 empty_line_after_doc_comments = "warn"
 equatable_if_let = "warn"
 missing_const_for_fn = "warn"
+redundant_type_annotations = "warn"
 use_self = "warn"
 
 [features]
diff --git a/tests/widgets_paragraph.rs b/tests/widgets_paragraph.rs
index 448929e9..0e03055b 100644
--- a/tests/widgets_paragraph.rs
+++ b/tests/widgets_paragraph.rs
@@ -82,7 +82,7 @@ fn widgets_paragraph_renders_mixed_width_graphemes() {
 
 #[test]
 fn widgets_paragraph_can_wrap_with_a_trailing_nbsp() {
-    let nbsp: &str = "\u{00a0}";
+    let nbsp = "\u{00a0}";
     let line = Line::from(vec![Span::raw("NBSP"), Span::raw(nbsp)]);
     let paragraph = Paragraph::new(line).block(Block::default().borders(Borders::ALL));