diff --git a/crates/ra_syntax/src/grammar/type_params.rs b/crates/ra_syntax/src/grammar/type_params.rs
index 369125b394..1ec813b3e1 100644
--- a/crates/ra_syntax/src/grammar/type_params.rs
+++ b/crates/ra_syntax/src/grammar/type_params.rs
@@ -126,7 +126,7 @@ fn is_where_predicate(p: &mut Parser) -> bool {
     match p.current() {
         LIFETIME => true,
         IMPL_KW => false,
-        _ => types::is_type_start(p),
+        token => types::TYPE_FIRST.contains(token),
     }
 }
 
diff --git a/crates/ra_syntax/src/grammar/types.rs b/crates/ra_syntax/src/grammar/types.rs
index c626abcfda..21d89d83bb 100644
--- a/crates/ra_syntax/src/grammar/types.rs
+++ b/crates/ra_syntax/src/grammar/types.rs
@@ -36,14 +36,6 @@ fn type_with_bounds_cond(p: &mut Parser, allow_bounds: bool) {
     }
 }
 
-pub(super) fn is_type_start(p: &mut Parser) -> bool {
-    if TYPE_FIRST.contains(p.current()) {
-        true
-    } else {
-        paths::is_path_start(p)
-    }
-}
-
 pub(super) fn ascription(p: &mut Parser) {
     p.expect(COLON);
     type_(p)