diff --git a/src/buffer.c b/src/buffer.c
index 420b5ea..f925129 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -3176,7 +3176,7 @@
 	    /* format: "fname + (path) (1 of 2) - VIM" */
 
 	    if (curbuf->b_fname == NULL)
-		STRCPY(buf, _("[No Name]"));
+		vim_strncpy(buf, (char_u *)_("[No Name]"), IOSIZE - 100);
 	    else
 	    {
 		p = transstr(gettail(curbuf->b_fname));
@@ -3232,7 +3232,7 @@
 	    if (serverName != NULL)
 	    {
 		STRCAT(buf, " - ");
-		STRCAT(buf, serverName);
+		vim_strcat(buf, serverName, IOSIZE);
 	    }
 	    else
 #endif