diff --git a/.gitmodules b/.gitmodules
index 39508a8..7172566 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -17,3 +17,6 @@
 [submodule "external/SDL_mixer"]
 	path = external/SDL_mixer
 	url = https://github.com/libsdl-org/SDL_mixer
+[submodule "external/libxm"]
+	path = external/libxm
+	url = https://github.com/Artefact2/libxm
diff --git a/external/libxm b/external/libxm
new file mode 160000
index 0000000..9f599c4
--- /dev/null
+++ b/external/libxm
@@ -0,0 +1 @@
+Subproject commit 9f599c4dd4079700e2d9b8af62dc1ab8d76808f5