diff --git a/.gitmodules b/.gitmodules
index 37e028c..e69de29 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +0,0 @@
-[submodule "flex"]
-	path = flex
-	url = https://github.com/alexandrevicenzi/Flex.git
diff --git a/flex b/flex
deleted file mode 160000
index 7e99f9b..0000000
--- a/flex
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 7e99f9bbe681a5b7edef9748bc6f6ae10f4862a7