diff --git a/.gitmodules b/.gitmodules
index e69de29bb..22bb8f04e 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "cde/programs/dtksh/ksh93"]
+	path = cde/programs/dtksh/ksh93
+	url = https://github.com/ksh93/ksh.git
diff --git a/cde/programs/dtksh/ksh93 b/cde/programs/dtksh/ksh93
new file mode 160000
index 000000000..47468f56c
--- /dev/null
+++ b/cde/programs/dtksh/ksh93
@@ -0,0 +1 @@
+Subproject commit 47468f56c2d0506045120fb4d0709f3a734693f5