diff --git a/overlay_buffer.c b/overlay_buffer.c
index 1db3496b..cf66daeb 100644
--- a/overlay_buffer.c
+++ b/overlay_buffer.c
@@ -353,13 +353,13 @@ int ob_dump(overlay_buffer *b,char *desc)
 void *_serval_debug_malloc(unsigned int bytes,char *file,const char *func,int line)
 {
   void *r=malloc(bytes+SDM_GUARD_AFTER);
-  fprintf(stderr,"%s:%d:%s(): malloc(%d) -> %p\n",file,line,func,bytes,r);
+  fprintf(stderr,"%s:%d:%s(): malloc(%d) -> %p\n",file,line,func,bytes,r); 
   return r;
 }
 
 void *_serval_debug_calloc(unsigned int bytes,unsigned int count,char *file,const char *func,int line)
 {
-  void *r=calloc(bytes+SDM_GUARD_AFTER,count);
+  void *r=calloc((bytes*count)+SDM_GUARD_AFTER,1);
   fprintf(stderr,"%s:%d:%s(): calloc(%d,%d) -> %p\n",file,line,func,bytes,count,r);
   return r;
 }