diff --git a/src/pwconv.c b/src/pwconv.c
index bd31160e..e0443d0c 100644
--- a/src/pwconv.c
+++ b/src/pwconv.c
@@ -83,6 +83,7 @@
 /*
  * Global variables
  */
+static char *Prog;
 static bool shadow_locked = false;
 static bool passwd_locked = false;
 
@@ -118,6 +119,8 @@ int main (int argc, char **argv)
 	struct spwd spent;
 	char *Prog = argv[0];
 
+	Prog = Basename (argv[0]);
+
 	(void) setlocale (LC_ALL, "");
 	(void) bindtextdomain (PACKAGE, LOCALEDIR);
 	(void) textdomain (PACKAGE);