diff --git a/modules/im/ximcp/imInsClbk.c b/modules/im/ximcp/imInsClbk.c
index d5527e0..97ed616 100644
--- a/modules/im/ximcp/imInsClbk.c
+++ b/modules/im/ximcp/imInsClbk.c
@@ -175,7 +175,14 @@ _XimRegisterIMInstantiateCallback(
     icb->display = display;
     icb->lcd = lcd;
     MakeLocale( lcd, icb->name );
-    icb->modifiers = lcd->core->modifiers;	/* XXXXX */
+    if ( lcd->core->modifiers ) {
+	icb->modifiers = strdup( lcd->core->modifiers ); /* XXXXX */
+	if ( icb->modifiers == NULL ) {
+	    Xfree( icb );
+	    return( False );
+	}
+    } else
+	icb->modifiers = NULL;
     icb->rdb = rdb;
     icb->res_name = res_name;
     icb->res_class = res_class;
@@ -258,6 +265,8 @@ _XimUnRegisterIMInstantiateCallback(
 		else
 		    picb->next = icb->next;
 		_XCloseLC( icb->lcd );
+		if( icb->modifiers )
+		    free( icb->modifiers );
 		XFree( icb );
 	    }
 	    return( True );