diff --git a/core/org.eclipse.cdt.ui.tests/resources/addInclude/Enumerator_307738.cpp b/core/org.eclipse.cdt.ui.tests/resources/addInclude/Enumerator_307738.cpp
new file mode 100644
index 00000000000..f0a3dc7fbdc
--- /dev/null
+++ b/core/org.eclipse.cdt.ui.tests/resources/addInclude/Enumerator_307738.cpp
@@ -0,0 +1,3 @@
+void test() {
+  int i = Ns::ENUM_VALUE;
+}
diff --git a/core/org.eclipse.cdt.ui.tests/resources/addInclude/Enumerator_307738.cpp.expected b/core/org.eclipse.cdt.ui.tests/resources/addInclude/Enumerator_307738.cpp.expected
new file mode 100644
index 00000000000..0c5202a7730
--- /dev/null
+++ b/core/org.eclipse.cdt.ui.tests/resources/addInclude/Enumerator_307738.cpp.expected
@@ -0,0 +1,4 @@
+#include "Enumerator_307738.h"
+void test() {
+  int i = Ns::ENUM_VALUE;
+}
diff --git a/core/org.eclipse.cdt.ui.tests/resources/addInclude/Enumerator_307738.h b/core/org.eclipse.cdt.ui.tests/resources/addInclude/Enumerator_307738.h
new file mode 100644
index 00000000000..9bf96c4891b
--- /dev/null
+++ b/core/org.eclipse.cdt.ui.tests/resources/addInclude/Enumerator_307738.h
@@ -0,0 +1,3 @@
+namespace Ns {
+  enum MyEnum {ENUM_VALUE};
+}
diff --git a/core/org.eclipse.cdt.ui.tests/ui/org/eclipse/cdt/ui/tests/text/AddIncludeTest.java b/core/org.eclipse.cdt.ui.tests/ui/org/eclipse/cdt/ui/tests/text/AddIncludeTest.java
index 9b092ee6a27..36fa9388ac0 100644
--- a/core/org.eclipse.cdt.ui.tests/ui/org/eclipse/cdt/ui/tests/text/AddIncludeTest.java
+++ b/core/org.eclipse.cdt.ui.tests/ui/org/eclipse/cdt/ui/tests/text/AddIncludeTest.java
@@ -149,4 +149,9 @@ public class AddIncludeTest extends TestCase {
 		select("func306670");
 		assertAddIncludeResult();
 	}
+
+	public void testEnumerator_307738() throws Exception {
+		select("ENUM_VALUE");
+		assertAddIncludeResult();
+	}
 }
diff --git a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/editor/AddIncludeOnSelectionAction.java b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/editor/AddIncludeOnSelectionAction.java
index 38bbdb468f2..db81e5a3061 100644
--- a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/editor/AddIncludeOnSelectionAction.java
+++ b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/editor/AddIncludeOnSelectionAction.java
@@ -55,6 +55,7 @@ import org.eclipse.cdt.core.dom.ast.IASTTranslationUnit;
 import org.eclipse.cdt.core.dom.ast.IBinding;
 import org.eclipse.cdt.core.dom.ast.ICompositeType;
 import org.eclipse.cdt.core.dom.ast.IEnumeration;
+import org.eclipse.cdt.core.dom.ast.IEnumerator;
 import org.eclipse.cdt.core.dom.ast.IFunction;
 import org.eclipse.cdt.core.dom.ast.IType;
 import org.eclipse.cdt.core.dom.ast.ITypedef;
@@ -260,8 +261,8 @@ public class AddIncludeOnSelectionAction extends TextEditorAction {
 				}
 			}
 			IIndexName[] definitions= null;
-			// class, struct, union, enum
-			if (indexBinding instanceof ICompositeType || indexBinding instanceof IEnumeration) {
+			// class, struct, union, enum-type, enum-item
+			if (indexBinding instanceof ICompositeType || indexBinding instanceof IEnumeration || indexBinding instanceof IEnumerator) {
 				definitions= index.findDefinitions(indexBinding);
 			} else if (indexBinding instanceof ITypedef || (indexBinding instanceof IFunction)) {
 				definitions = index.findDeclarations(indexBinding);