diff --git a/reactos/include/reactos/debug.h b/reactos/include/reactos/debug.h
index 9f2f4c3b0d1..297edefe851 100644
--- a/reactos/include/reactos/debug.h
+++ b/reactos/include/reactos/debug.h
@@ -29,7 +29,7 @@
 ULONG
 __cdecl
 DbgPrint(
-    IN PCH  Format,
+    IN PCCH  Format,
     IN ...
 );