diff --git a/lib/memdebug.c b/lib/memdebug.c
index d56c637fc..2b6c55c3b 100644
--- a/lib/memdebug.c
+++ b/lib/memdebug.c
@@ -201,7 +201,7 @@ void *curl_dorealloc(void *ptr, size_t wantedsize,
 
   mem=(struct memdebug *)(Curl_crealloc)(mem, size);
   if(logfile)
-    fprintf(logfile, "MEM %s:%d realloc(0x%x, %zd) = %p\n",
+    fprintf(logfile, "MEM %s:%d realloc(%p, %zd) = %p\n",
             source, line, ptr, wantedsize, mem?mem->mem:NULL);
 
   if(mem) {