1 files changed, 4 insertions, 3 deletions
diff --git a/nx-X11/lib/X11/XlibInt.c b/nx-X11/lib/X11/XlibInt.c
index 23717fd7f..151e521bd 100644
--- a/nx-X11/lib/X11/XlibInt.c
+++ b/nx-X11/lib/X11/XlibInt.c
@@ -3528,9 +3528,10 @@ static int _XPrintDefaultError(
 	     ext && (ext->codes.major_opcode != event->request_code);
 	     ext = ext->next)
 	  ;
-	if (ext)
-	    strcpy(buffer, ext->name);
-	else
+	if (ext) {
+	    strncpy(buffer, ext->name, BUFSIZ);
+	    buffer[BUFSIZ - 1] = '\0';
+        } else
 	    buffer[0] = '\0';
     }
     (void) fprintf(fp, " (%s)\n", buffer);