diff --git a/reactos/ntoskrnl/config/cmsysini.c b/reactos/ntoskrnl/config/cmsysini.c
index 53d722f4169..302bfbec886 100644
--- a/reactos/ntoskrnl/config/cmsysini.c
+++ b/reactos/ntoskrnl/config/cmsysini.c
@@ -29,6 +29,7 @@ BOOLEAN CmpSpecialBootCondition;
 BOOLEAN CmpNoWrite;
 BOOLEAN CmpForceForceFlush;
 BOOLEAN CmpWasSetupBoot;
+ULONG CmpTraceLevel = 0;
 
 extern BOOLEAN CmFirstTime;
 
diff --git a/reactos/ntoskrnl/include/internal/cm.h b/reactos/ntoskrnl/include/internal/cm.h
index 6b17ba3ca81..9a4b33c9ef8 100644
--- a/reactos/ntoskrnl/include/internal/cm.h
+++ b/reactos/ntoskrnl/include/internal/cm.h
@@ -11,7 +11,7 @@
 //
 // Define this if you want debugging support
 //
-#define _CM_DEBUG_                                      0x00
+#define _CM_DEBUG_                                      0x01
 
 //
 // These define the Debug Masks Supported
@@ -1438,6 +1438,7 @@ CmShutdownSystem(
 //
 // Global variables accessible from all of Cm
 //
+extern ULONG CmpTraceLevel;
 extern BOOLEAN CmpSpecialBootCondition;
 extern BOOLEAN CmpFlushOnLockRelease;
 extern BOOLEAN CmpShareSystemHives;