diff --git a/change_notes/2024-03-19-change-alert-a3-3-1.md b/change_notes/2024-03-19-change-alert-a3-3-1.md
new file mode 100644
index 0000000000..f0cceccfed
--- /dev/null
+++ b/change_notes/2024-03-19-change-alert-a3-3-1.md
@@ -0,0 +1,2 @@
+- `A3-3-1` - `ExternalLinkageNotDeclaredInHeaderFile.ql`:
+  - Adjust the alert message to comply with the style guide.
\ No newline at end of file
diff --git a/cpp/autosar/src/rules/A3-3-1/ExternalLinkageNotDeclaredInHeaderFile.ql b/cpp/autosar/src/rules/A3-3-1/ExternalLinkageNotDeclaredInHeaderFile.ql
index e7bff9ef71..06c6ad517c 100644
--- a/cpp/autosar/src/rules/A3-3-1/ExternalLinkageNotDeclaredInHeaderFile.ql
+++ b/cpp/autosar/src/rules/A3-3-1/ExternalLinkageNotDeclaredInHeaderFile.ql
@@ -38,4 +38,4 @@ where
   // Main functions are an exception to the rule
   not de.getDeclaration() instanceof MainFunction and
   if de.getDeclaration() instanceof Function then kind = "function" else kind = "object"
-select de, "Externally linked " + kind + " " + de.getName() + " not declared in header file."
+select de, "Externally linked " + kind + " '" + de.getName() + "' not declared in header file."
diff --git a/cpp/autosar/test/rules/A3-3-1/ExternalLinkageNotDeclaredInHeaderFile.expected b/cpp/autosar/test/rules/A3-3-1/ExternalLinkageNotDeclaredInHeaderFile.expected
index 8ec684e14c..e5657e9eec 100644
--- a/cpp/autosar/test/rules/A3-3-1/ExternalLinkageNotDeclaredInHeaderFile.expected
+++ b/cpp/autosar/test/rules/A3-3-1/ExternalLinkageNotDeclaredInHeaderFile.expected
@@ -1,6 +1,6 @@
-| test.cpp:3:5:3:6 | definition of g1 | Externally linked object g1 not declared in header file. |
-| test.cpp:4:12:4:13 | declaration of g2 | Externally linked object g2 not declared in header file. |
-| test.cpp:10:5:10:6 | definition of l1 | Externally linked object l1 not declared in header file. |
-| test.cpp:11:6:11:7 | definition of f1 | Externally linked function f1 not declared in header file. |
-| test.cpp:22:5:22:5 | definition of f | Externally linked function f not declared in header file. |
-| test.cpp:25:5:25:6 | declaration of f1 | Externally linked function f1 not declared in header file. |
+| test.cpp:3:5:3:6 | definition of g1 | Externally linked object 'g1' not declared in header file. |
+| test.cpp:4:12:4:13 | declaration of g2 | Externally linked object 'g2' not declared in header file. |
+| test.cpp:10:5:10:6 | definition of l1 | Externally linked object 'l1' not declared in header file. |
+| test.cpp:11:6:11:7 | definition of f1 | Externally linked function 'f1' not declared in header file. |
+| test.cpp:22:5:22:5 | definition of f | Externally linked function 'f' not declared in header file. |
+| test.cpp:25:5:25:6 | declaration of f1 | Externally linked function 'f1' not declared in header file. |
diff --git a/cpp/autosar/test/rules/A3-3-1/test.cpp b/cpp/autosar/test/rules/A3-3-1/test.cpp
index 194b06329c..992399f4c6 100644
--- a/cpp/autosar/test/rules/A3-3-1/test.cpp
+++ b/cpp/autosar/test/rules/A3-3-1/test.cpp
@@ -35,4 +35,8 @@ namespace n {
 void f5() { // COMPLIANT
   int i = 0;
 }
-} // namespace n
\ No newline at end of file
+} // namespace n
+
+const int c = 1;                // COMPLIANT - internal linkage
+const char *const str2 = "foo"; // COMPLIANT - internal linkage
+constexpr int k = 1;            // COMPLIANT - internal linkage
\ No newline at end of file