diff --git a/pkg/analysis_server/lib/src/lsp/mapping.dart b/pkg/analysis_server/lib/src/lsp/mapping.dart
index 9ef05933dab..64559e523a2 100644
--- a/pkg/analysis_server/lib/src/lsp/mapping.dart
+++ b/pkg/analysis_server/lib/src/lsp/mapping.dart
@@ -1538,17 +1538,9 @@ lsp.SignatureHelp toSignatureHelp(
         ? ' = ${p.defaultValueCode}'
         : '';
 
-    var hasFinal = p is FieldFormalParameterElement
-        ? (p.field?.isFinal ?? false)
-        : p.isFinal;
-    var hasVar = p is FieldFormalParameterElement && p.isDeclaring && !hasFinal;
+    var prefix = p.isRequiredNamed ? 'required ' : '';
 
-    var prefixes = [
-      if (hasFinal) 'final ',
-      if (hasVar) 'var ',
-      if (p.isRequiredNamed) 'required ',
-    ];
-    return '${prefixes.join()}${p.type} ${p.displayName}$defaultCodeSuffix';
+    return '$prefix${p.type} ${p.displayName}$defaultCodeSuffix';
   }
 
   /// Gets the full signature label in the form
diff --git a/pkg/analysis_server/test/lsp/signature_help_test.dart b/pkg/analysis_server/test/lsp/signature_help_test.dart
index 63f7ab23cd0..150498499bb 100644
--- a/pkg/analysis_server/test/lsp/signature_help_test.dart
+++ b/pkg/analysis_server/test/lsp/signature_help_test.dart
@@ -663,6 +663,8 @@ final a = A(^);
     );
   }
 
+  /// Keywords for declaraing parameters should not be shown because they don't
+  /// change the parameters and are just visual noise.
   Future<void> test_params_final() async {
     var content = '''
 foo(final String s) {
@@ -670,12 +672,12 @@ foo(final String s) {
 }
 ''';
 
-    var expectedLabel = 'foo(final String s)';
+    var expectedLabel = 'foo(String s)';
 
     await _expectSignature(
       content,
       expectedLabel,
-      expectedParams: [ParameterInformation(label: 'final String s')],
+      expectedParams: [ParameterInformation(label: 'String s')],
     );
   }
 
@@ -798,10 +800,10 @@ class A(final int x, var int y, int z);
 
 final a = A(^);
 ''';
-    var expectedLabel = 'A(final int x, var int y, int z)';
+    var expectedLabel = 'A(int x, int y, int z)';
     var expectedParams = [
-      ParameterInformation(label: 'final int x'),
-      ParameterInformation(label: 'var int y'),
+      ParameterInformation(label: 'int x'),
+      ParameterInformation(label: 'int y'),
       ParameterInformation(label: 'int z'),
     ];