diff -r d726f725f088 -r ac3973a88b24 libpurple/protocols/irc/cmds.c
--- a/libpurple/protocols/irc/cmds.c	Wed Nov 21 22:26:49 2007 +0000
+++ b/libpurple/protocols/irc/cmds.c	Wed Nov 21 22:31:11 2007 +0000
@@ -294,14 +294,17 @@
 	ops = g_new0(char *, i * 2 + 1);
 
 	for (i = 0; nicks[i]; i++) {
-		if (!*nicks[i])
+		if (!*nicks[i]) {
+			g_free(nicks[i]);
 			continue;
+		}
 		ops[used++] = mode;
 		ops[used++] = nicks[i];
 	}
 
 	irc_do_mode(irc, target, sign, ops);
 	g_free(ops);
+	g_free(nicks);  /* No, not g_strfreev */
 
 	return 0;
 }