diff --git a/pkg/analyzer/lib/src/error/codes.g.dart b/pkg/analyzer/lib/src/error/codes.g.dart
index 2c818bbf355a..beb58fa66a5b 100644
--- a/pkg/analyzer/lib/src/error/codes.g.dart
+++ b/pkg/analyzer/lib/src/error/codes.g.dart
@@ -156,7 +156,7 @@ class CompileTimeErrorCode extends ErrorCode {
   ///  No parameters.
   static const CompileTimeErrorCode ASSIGNMENT_TO_CONST = CompileTimeErrorCode(
     'ASSIGNMENT_TO_CONST',
-    "Constant variables can't be assigned a value.",
+    "Constant variables can't be assigned a value after initialization.",
     correctionMessage:
         "Try removing the assignment, or remove the modifier 'const' from the "
         "variable.",
diff --git a/pkg/analyzer/messages.yaml b/pkg/analyzer/messages.yaml
index 526862d928d9..6f574c82522f 100644
--- a/pkg/analyzer/messages.yaml
+++ b/pkg/analyzer/messages.yaml
@@ -788,7 +788,7 @@ CompileTimeErrorCode:
       }
       ```
   ASSIGNMENT_TO_CONST:
-    problemMessage: "Constant variables can't be assigned a value."
+    problemMessage: "Constant variables can't be assigned a value after initialization."
     correctionMessage: "Try removing the assignment, or remove the modifier 'const' from the variable."
     hasPublishedDocs: true
     comment: No parameters.