diff --git a/src/main.sh b/src/main.sh
index 29b4a70..32017d3 100755
--- a/src/main.sh
+++ b/src/main.sh
@@ -567,6 +567,7 @@ __refresh_data() {
   __load_approx_data >"$APPROX_DATA_FILE"
   WEEKLY_DATA_FILE=$(mktemp)
   __load_weeks >"$WEEKLY_DATA_FILE"
+  trap 'rm -f "$APPROX_DATA_FILE" "$WEEKLY_DATA_FILE"' EXIT INT
 }
 
 ###