diff --git a/reactos/lib/crt/stdio/fread.c b/reactos/lib/crt/stdio/fread.c
index 528a8e0d256..0bc11ca8ebf 100644
--- a/reactos/lib/crt/stdio/fread.c
+++ b/reactos/lib/crt/stdio/fread.c
@@ -81,5 +81,8 @@ size_t fread(void *vptr, size_t size, size_t count, FILE *iop)
        }
     }
   }
-  return count - (to_read/size);
+  // return   count - (to_read/size)  
+  /* FIXME is this formual right ?, I copy the formula from djgpp 
+     in our  to_read or copy ? */
+  return size != 0 ? count - ((to_read + size - 1) / size) : 0;
 }