diff --git a/scripts/time_entry.gd b/scripts/time_entry.gd
index c87f71b..87911d2 100644
--- a/scripts/time_entry.gd
+++ b/scripts/time_entry.gd
@@ -76,4 +76,4 @@ func from_csv_line(line: PackedStringArray) -> TimeEntry:
 	return self
 
 func _to_string() -> String:
-	return "%s\t%s\t%s"%[name, Consts.ONGOING if closed == false else "", start_time]
\ No newline at end of file
+	return "%s\t%s\t%s"%[name, Consts.ONGOING if closed == false else "", start_time]
diff --git a/scripts/time_sheet.gd b/scripts/time_sheet.gd
index 26ccd5f..1af5aea 100644
--- a/scripts/time_sheet.gd
+++ b/scripts/time_sheet.gd
@@ -43,6 +43,7 @@ func start_entry(entry_name: String) -> void:
 	var file := FileAccess.open(source_path, FileAccess.READ_WRITE)
 	if file == null:
 		printerr("Could not open file")
+		return
 	entries.append(current_entry)
 	file.store_csv_line(current_entry.to_csv_line())
 
@@ -69,6 +70,7 @@ func save() -> void:
 	var file := FileAccess.open(source_path, FileAccess.WRITE)
 	if file == null:
 		printerr("Could not open file")
+		return
 	for time_entry in entries:
 		file.store_csv_line(time_entry.to_csv_line())