--- a/src/misc.c
+++ b/src/misc.c
@@ -58,7 +58,7 @@
 	linebuf[64] = ' ';
 	linebuf[56 + j - 1 + (j - 1 > 7) + 1] = '\n';
 	linebuf[56 + j - 1 + (j - 1 > 7) + 2] = '\0';
-	printf(linebuf);
+	printf("%s", linebuf);
 #ifdef DEBUG
 	if (strlen(linebuf) > 73) {
 		fprintf(stderr, "line too long, wtf?!\n");