diff --git a/.gitmodules b/.gitmodules
index 56db866..891c35d 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "src/BuildData"]
 	path = src/BuildData
 	url = https://git.p-epsilon.com/Deukhoofd/BuildData.git
+[submodule "extern/gitversion"]
+	path = extern/gitversion
+	url = https://github.com/smessmer/gitversion.git
diff --git a/extern/gitversion b/extern/gitversion
new file mode 160000
index 0000000..85c2cbb
--- /dev/null
+++ b/extern/gitversion
@@ -0,0 +1 @@
+Subproject commit 85c2cbb339a207fe61da9f062e2f0e38056e7711