diff --git a/src/testlib/qtestcrashhandler_p.h b/src/testlib/qtestcrashhandler_p.h
index ff058ff3e66..80ec18a3efe 100644
--- a/src/testlib/qtestcrashhandler_p.h
+++ b/src/testlib/qtestcrashhandler_p.h
@@ -27,6 +27,15 @@
 QT_BEGIN_NAMESPACE
 namespace QTest {
 namespace CrashHandler {
+    enum DebuggerProgram {
+        None,
+        Gdb,
+        Lldb,
+#ifdef Q_OS_WIN
+        Cdb,
+#endif
+    };
+
     bool alreadyDebugging();
     void blockUnixSignals();
 
diff --git a/src/testlib/qtestcrashhandler_unix.cpp b/src/testlib/qtestcrashhandler_unix.cpp
index 6d58a45e6ba..23ba8287d81 100644
--- a/src/testlib/qtestcrashhandler_unix.cpp
+++ b/src/testlib/qtestcrashhandler_unix.cpp
@@ -244,8 +244,6 @@ bool alreadyDebugging()
 #endif
 }
 
-namespace {
-enum DebuggerProgram { None, Gdb, Lldb };
 static bool hasSystemCrashReporter()
 {
 #if defined(Q_OS_MACOS)
@@ -254,7 +252,6 @@ static bool hasSystemCrashReporter()
     return false;
 #endif
 }
-} // unnamed namespaced
 
 void maybeDisableCoreDump()
 {
diff --git a/src/testlib/qtestcrashhandler_win.cpp b/src/testlib/qtestcrashhandler_win.cpp
index 6a9f610eabd..62c6909f9c7 100644
--- a/src/testlib/qtestcrashhandler_win.cpp
+++ b/src/testlib/qtestcrashhandler_win.cpp
@@ -33,7 +33,6 @@ void maybeDisableCoreDump()
 {
 }
 
-enum DebuggerProgram { None, Gdb, Lldb, Cdb };
 static DebuggerProgram debugger = None;
 void prepareStackTrace()
 {