diff --git a/dive.c b/dive.c
index 1a9bdd97a..7d62616b6 100644
--- a/dive.c
+++ b/dive.c
@@ -612,7 +612,6 @@ static void mark_used_tanks(struct dive *dive, struct divecomputer *dc)
 /* walk all divecomputers to find the unused tanks in this dive */
 static void check_for_unused_tanks(struct dive *dive)
 {
-	int i;
 	struct divecomputer *dc;
 
 	for_each_dc(dive, dc) {