diff --git a/src/disk/hdd_image.c b/src/disk/hdd_image.c
index 21fdf00c6..9d5671fae 100644
--- a/src/disk/hdd_image.c
+++ b/src/disk/hdd_image.c
@@ -128,8 +128,11 @@ image_is_hdx(const wchar_t *s, int check_signature)
 		fseeko64(f, 0, SEEK_END);
 		filelen = ftello64(f);
 		fseeko64(f, 0, SEEK_SET);
-		if (filelen < 44)
+		if (filelen < 44) {
+			if (f != NULL)
+				fclose(f);
 			return 0;
+		}
 		fread(&signature, 1, 8, f);
 		fclose(f);
 		if (signature == 0xD778A82044445459ll)