diff --git a/dlls/msvcrt/heap.c b/dlls/msvcrt/heap.c
index e8c37659137..bd914a75bc8 100644
--- a/dlls/msvcrt/heap.c
+++ b/dlls/msvcrt/heap.c
@@ -596,7 +596,7 @@ int CDECL strncpy_s(char *dest, MSVCRT_size_t numberOfElements,
 {
     MSVCRT_size_t i, end;
 
-    TRACE("(%s %lu %s %lu)\n", dest, numberOfElements, src, count);
+    TRACE("(%p %lu %s %lu)\n", dest, numberOfElements, debugstr_a(src), count);
 
     if(!count) {
         if(dest && numberOfElements)