diff --git a/compiler/rustc_middle/messages.ftl b/compiler/rustc_middle/messages.ftl
index 69adb2fe3919f..279ab9a9d8fbe 100644
--- a/compiler/rustc_middle/messages.ftl
+++ b/compiler/rustc_middle/messages.ftl
@@ -84,7 +84,7 @@ middle_failed_writing_file =
 # Note: We only mention patterns here since the error can only occur with references, and those
 # are forbidden in const generics.
 middle_invalid_const_in_valtree = constant {$global_const_id} cannot be used as pattern
-    .note = constants that reference mutable or external memory cannot be used as pattern
+    .note = constants that reference mutable or external memory cannot be used as patterns
 
 middle_layout_cycle =
     a cycle occurred during layout computation
diff --git a/tests/ui/consts/const_refs_to_static_fail.stderr b/tests/ui/consts/const_refs_to_static_fail.stderr
index c567b3e0ce1f4..2bb6d2b8fef7c 100644
--- a/tests/ui/consts/const_refs_to_static_fail.stderr
+++ b/tests/ui/consts/const_refs_to_static_fail.stderr
@@ -16,7 +16,7 @@ error: constant BAD_PATTERN cannot be used as pattern
 LL |         BAD_PATTERN => {},
    |         ^^^^^^^^^^^
    |
-   = note: constants that reference mutable or external memory cannot be used as pattern
+   = note: constants that reference mutable or external memory cannot be used as patterns
 
 error: aborting due to 3 previous errors
 
diff --git a/tests/ui/consts/const_refs_to_static_fail_invalid.stderr b/tests/ui/consts/const_refs_to_static_fail_invalid.stderr
index f9088c318a621..226a9de285dc3 100644
--- a/tests/ui/consts/const_refs_to_static_fail_invalid.stderr
+++ b/tests/ui/consts/const_refs_to_static_fail_invalid.stderr
@@ -15,7 +15,7 @@ error: constant extern_::C cannot be used as pattern
 LL |         C => {}
    |         ^
    |
-   = note: constants that reference mutable or external memory cannot be used as pattern
+   = note: constants that reference mutable or external memory cannot be used as patterns
 
 error: constant mutable::C cannot be used as pattern
   --> $DIR/const_refs_to_static_fail_invalid.rs:42:9
@@ -23,7 +23,7 @@ error: constant mutable::C cannot be used as pattern
 LL |         C => {}
    |         ^
    |
-   = note: constants that reference mutable or external memory cannot be used as pattern
+   = note: constants that reference mutable or external memory cannot be used as patterns
 
 error: aborting due to 3 previous errors
 
diff --git a/tests/ui/consts/miri_unleashed/const_refers_to_static.stderr b/tests/ui/consts/miri_unleashed/const_refers_to_static.stderr
index 6b70a211a72cc..5b8797c511627 100644
--- a/tests/ui/consts/miri_unleashed/const_refers_to_static.stderr
+++ b/tests/ui/consts/miri_unleashed/const_refers_to_static.stderr
@@ -22,7 +22,7 @@ error: constant REF_INTERIOR_MUT cannot be used as pattern
 LL |         REF_INTERIOR_MUT => {},
    |         ^^^^^^^^^^^^^^^^
    |
-   = note: constants that reference mutable or external memory cannot be used as pattern
+   = note: constants that reference mutable or external memory cannot be used as patterns
 
 warning: skipping const checks
    |
diff --git a/tests/ui/consts/miri_unleashed/const_refers_to_static_cross_crate.stderr b/tests/ui/consts/miri_unleashed/const_refers_to_static_cross_crate.stderr
index d753506cc94e3..c2b730375f2c2 100644
--- a/tests/ui/consts/miri_unleashed/const_refers_to_static_cross_crate.stderr
+++ b/tests/ui/consts/miri_unleashed/const_refers_to_static_cross_crate.stderr
@@ -10,7 +10,7 @@ error: constant SLICE_MUT cannot be used as pattern
 LL |         SLICE_MUT => true,
    |         ^^^^^^^^^
    |
-   = note: constants that reference mutable or external memory cannot be used as pattern
+   = note: constants that reference mutable or external memory cannot be used as patterns
 
 error: constant U8_MUT cannot be used as pattern
   --> $DIR/const_refers_to_static_cross_crate.rs:44:9
@@ -18,7 +18,7 @@ error: constant U8_MUT cannot be used as pattern
 LL |         U8_MUT => true,
    |         ^^^^^^
    |
-   = note: constants that reference mutable or external memory cannot be used as pattern
+   = note: constants that reference mutable or external memory cannot be used as patterns
 
 error: constant U8_MUT2 cannot be used as pattern
   --> $DIR/const_refers_to_static_cross_crate.rs:53:9
@@ -26,7 +26,7 @@ error: constant U8_MUT2 cannot be used as pattern
 LL |         U8_MUT2 => true,
    |         ^^^^^^^
    |
-   = note: constants that reference mutable or external memory cannot be used as pattern
+   = note: constants that reference mutable or external memory cannot be used as patterns
 
 error: aborting due to 4 previous errors