diff --git a/bedstead.c b/bedstead.c
index 38fb219..e11b258 100644
--- a/bedstead.c
+++ b/bedstead.c
@@ -1265,7 +1265,7 @@ main(int argc, char **argv)
 	int extraglyphs = 0;
 	char *endptr;
 
-	if (argc == 2 && strcmp(argv[1], "--complement")) {
+	if (argc == 2 && strcmp(argv[1], "--complement") == 0) {
 		glyph_complement();
 		return 0;
 	}