diff --git a/src/ContextUtils.h b/src/ContextUtils.h
--- a/src/ContextUtils.h
+++ b/src/ContextUtils.h
@@ -98,8 +98,8 @@
         return nullptr;
 
     q = TypeUtils::pointeeQualType(q);
-    // Check if it's a class, struct or union
-    clang::CXXRecordDecl *rec = q->getAsCXXRecordDecl();
+    // Check if it's a class, struct, union or enum
+    clang::TagDecl *rec = q->getAsTagDecl();
     if (rec)
         return namespaceForDecl(rec);
 
diff --git a/tests/qhash-namespace/main.cpp b/tests/qhash-namespace/main.cpp
--- a/tests/qhash-namespace/main.cpp
+++ b/tests/qhash-namespace/main.cpp
@@ -15,6 +15,11 @@
     uint qHash(NS2::C) { return 0; }; // Warn
     uint qHash(::A) { return 0; } // Warn
     uint qHash(B::B3) { return 0; }; // OK
+    enum class EnumClass
+    {
+        One
+    };
+    uint qHash(EnumClass) { return 0; } // OK
 }
 uint qHash(NS::B) { return 0; } // Warn
 uint qHash(NS::B *) { return 0; } // Warn
diff --git a/tests/qhash-namespace/main.cpp.expected b/tests/qhash-namespace/main.cpp.expected
--- a/tests/qhash-namespace/main.cpp.expected
+++ b/tests/qhash-namespace/main.cpp.expected
@@ -1,7 +1,7 @@
 qhash-namespace/main.cpp:15:5: warning: Move qHash(NS::NS2::C) to NS::NS2 namespace for ADL lookup [-Wclazy-qhash-namespace]
 qhash-namespace/main.cpp:16:5: warning: Move qHash(A) out of namespace NS [-Wclazy-qhash-namespace]
-qhash-namespace/main.cpp:19:1: warning: Move qHash(NS::B) into NS namespace for ADL lookup [-Wclazy-qhash-namespace]
-qhash-namespace/main.cpp:20:1: warning: Move qHash(NS::B *) into NS namespace for ADL lookup [-Wclazy-qhash-namespace]
-qhash-namespace/main.cpp:21:1: warning: Move qHash(NS::B::B3) into NS namespace for ADL lookup [-Wclazy-qhash-namespace]
-qhash-namespace/main.cpp:22:1: warning: Move qHash(NS::IntFoo) into NS namespace for ADL lookup [-Wclazy-qhash-namespace]
-qhash-namespace/main.cpp:25:1: warning: qHash(E) must be declared before QT_END_NAMESPACE [-Wclazy-qhash-namespace]
+qhash-namespace/main.cpp:24:1: warning: Move qHash(NS::B) into NS namespace for ADL lookup [-Wclazy-qhash-namespace]
+qhash-namespace/main.cpp:25:1: warning: Move qHash(NS::B *) into NS namespace for ADL lookup [-Wclazy-qhash-namespace]
+qhash-namespace/main.cpp:26:1: warning: Move qHash(NS::B::B3) into NS namespace for ADL lookup [-Wclazy-qhash-namespace]
+qhash-namespace/main.cpp:27:1: warning: Move qHash(IntFoo) into NS namespace for ADL lookup [-Wclazy-qhash-namespace]
+qhash-namespace/main.cpp:30:1: warning: qHash(E) must be declared before QT_END_NAMESPACE [-Wclazy-qhash-namespace]