--- gmchess-0.29.6/src/engine/cchess.cpp
+++ gmchess-0.29.6/src/engine/cchess.cpp
@@ -690,7 +690,7 @@
     }
     lpSrc ++;
   };
-  while(lpSrc != '\0' && lpDst < lpDstLimit) {
+  while(*lpSrc != '\0' && lpDst < lpDstLimit) {
     *lpDst = *lpSrc;
     lpSrc ++;
     lpDst ++;