diff --git a/.gitmodules b/.gitmodules
index 630d0ba..900ee5e 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -309,3 +309,7 @@ url = ../rpm/meson.git
 [submodule "mpc"]
 path = mpc
 url = ../rpm/mpc.git
+
+[submodule "mpdecimal"]
+path = mpdecimal
+url = ../rpm/mpdecimal.git
diff --git a/mpdecimal b/mpdecimal
new file mode 160000
index 0000000..d6e247f
--- /dev/null
+++ b/mpdecimal
@@ -0,0 +1 @@
+Subproject commit d6e247ff99282d7021d185c3dabbda42960f54e4