diff --git a/clippy_lints/src/enum_variants.rs b/clippy_lints/src/enum_variants.rs
index cb0fd59a2d4..d73d0f1752e 100644
--- a/clippy_lints/src/enum_variants.rs
+++ b/clippy_lints/src/enum_variants.rs
@@ -227,7 +227,7 @@ fn check_variant(
         cx,
         lint,
         span,
-        &format!("All variants have the same {}fix: `{}`", what, value),
+        &format!("all variants have the same {}fix: `{}`", what, value),
         None,
         &format!(
             "remove the {}fixes and use full paths to \
diff --git a/tests/ui/enum_variants.stderr b/tests/ui/enum_variants.stderr
index 2835391de7f..3aa0e4ddcfe 100644
--- a/tests/ui/enum_variants.stderr
+++ b/tests/ui/enum_variants.stderr
@@ -24,7 +24,7 @@ error: Variant name starts with the enum's name
 LL |     FoodBad,
    |     ^^^^^^^
 
-error: All variants have the same prefix: `Food`
+error: all variants have the same prefix: `Food`
   --> $DIR/enum_variants.rs:26:1
    |
 LL | / enum Food {
@@ -36,7 +36,7 @@ LL | | }
    |
    = help: remove the prefixes and use full paths to the variants instead of glob imports
 
-error: All variants have the same prefix: `CallType`
+error: all variants have the same prefix: `CallType`
   --> $DIR/enum_variants.rs:36:1
    |
 LL | / enum BadCallType {
@@ -48,7 +48,7 @@ LL | | }
    |
    = help: remove the prefixes and use full paths to the variants instead of glob imports
 
-error: All variants have the same prefix: `Constant`
+error: all variants have the same prefix: `Constant`
   --> $DIR/enum_variants.rs:48:1
    |
 LL | / enum Consts {
@@ -60,7 +60,7 @@ LL | | }
    |
    = help: remove the prefixes and use full paths to the variants instead of glob imports
 
-error: All variants have the same prefix: `With`
+error: all variants have the same prefix: `With`
   --> $DIR/enum_variants.rs:82:1
    |
 LL | / enum Seallll {
@@ -72,7 +72,7 @@ LL | | }
    |
    = help: remove the prefixes and use full paths to the variants instead of glob imports
 
-error: All variants have the same prefix: `Prefix`
+error: all variants have the same prefix: `Prefix`
   --> $DIR/enum_variants.rs:88:1
    |
 LL | / enum NonCaps {
@@ -84,7 +84,7 @@ LL | | }
    |
    = help: remove the prefixes and use full paths to the variants instead of glob imports
 
-error: All variants have the same prefix: `With`
+error: all variants have the same prefix: `With`
   --> $DIR/enum_variants.rs:94:1
    |
 LL | / pub enum PubSeall {