diff --git a/source/shell/progress.c b/source/shell/progress.c
index 145dbc3..9c58384 100644
--- a/source/shell/progress.c
+++ b/source/shell/progress.c
@@ -4,12 +4,16 @@
 
 void draw_progress(FILE *fp, unsigned long pos, unsigned long max)
 {
-	unsigned long head = (TERM_WIDTH - 2) * pos / max;
-	unsigned long i;
+	unsigned long head, i;
+
+	if (pos > max)
+		pos = max;
+
+	head = (TERM_WIDTH - 2) * pos / max;
 
 	fputc('[', fp);
 
-	for (i = 0; i <= head; ++i)
+	for (i = 0; i < head; ++i)
 		fputc('#', fp);
 
 	for (; i < (TERM_WIDTH - 2); ++i)