--- a/plugins/command/xp/AbiCommand.cpp
+++ b/plugins/command/xp/AbiCommand.cpp
@@ -1188,7 +1188,7 @@
 			{
 				const UT_UTF8String *pCom1 = pToks->getNthItem (1);
 				printf(" Filename %s \n",pCom1->utf8_str());
-				const char *suffix = rindex (pCom1->utf8_str (), '.');
+				const char *suffix = strrchr (pCom1->utf8_str (), '.');
 
 				if (suffix != NULL)
 				{