diff --git a/pub/src/opr.cpp b/pub/src/opr.cpp
index cf442a6c555c84f42f4e122033403fca11f5332e..d0338d9ca96c9921a5d686e86c874fda2b5840ce 100644
--- a/pub/src/opr.cpp
+++ b/pub/src/opr.cpp
@@ -36,7 +36,7 @@ void NOperate::Show( string subcmd )
     const COld *fin;
     COlo *f;
     double lval;
-    uint k, ni;
+    size_t k, ni;
     string outj, outp;
     char txt[26];