diff --git a/programs/winedbg/memory.c b/programs/winedbg/memory.c
index 84f43b0ddee..b51257e480b 100644
--- a/programs/winedbg/memory.c
+++ b/programs/winedbg/memory.c
@@ -652,7 +652,7 @@ BOOL memory_get_register(DWORD regno, DWORD** value, char* buffer, int len)
             else
                 *value = div->pval;
 
-            snprintf(buffer, len, div->name);
+            if (buffer) snprintf(buffer, len, div->name);
             return TRUE;
         }
     }