diff --git a/reactos/base/applications/taskmgr/applpage.c b/reactos/base/applications/taskmgr/applpage.c
index 0c4ad43a6ff..7f103abf4b0 100644
--- a/reactos/base/applications/taskmgr/applpage.c
+++ b/reactos/base/applications/taskmgr/applpage.c
@@ -66,7 +66,9 @@ GetSystemColorDepth(VOID)
 
     pDevMode.dmSize = sizeof(DEVMODE);
     pDevMode.dmDriverExtra = 0;
-    EnumDisplaySettings(NULL, ENUM_CURRENT_SETTINGS, &pDevMode);
+
+    if (!EnumDisplaySettings(NULL, ENUM_CURRENT_SETTINGS, &pDevMode))
+        return ILC_COLOR;
 
     switch (pDevMode.dmBitsPerPel)
     {