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-rw-r--r--src/inc/stdmacros.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/inc/stdmacros.h b/src/inc/stdmacros.h
index ab77a2cd91..3ec8bec6f3 100644
--- a/src/inc/stdmacros.h
+++ b/src/inc/stdmacros.h
@@ -277,7 +277,7 @@ inline ULONG RoundUpToPower2(ULONG x)
#define DBG_GET_CLASS_NAME(pMT) \
- (pMT)->GetClass()->GetDebugClassName()
+ (((pMT) == NULL) ? NULL : (pMT)->GetClass()->GetDebugClassName())
#define DBG_CLASS_NAME_MT(pMT) \
(DBG_GET_CLASS_NAME(pMT) == NULL) ? "<null-class>" : DBG_GET_CLASS_NAME(pMT)