diff --git a/.gitmodules b/.gitmodules
index 8c1f8fb0a277a862bba741706d9f080c58b936cd..631b9ac62454d1fc8be07a1c0525b0c33f4d3b0b 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -13,3 +13,6 @@
 [submodule "externals/lyonpotpourri"]
 	path = externals/lyonpotpourri
 	url = https://git.purrdata.net/jwilkes/lyonpotpourri.git
+[submodule "externals/fftease"]
+	path = externals/fftease
+	url = https://git.purrdata.net/jwilkes/fftease.git
diff --git a/externals/fftease b/externals/fftease
new file mode 160000
index 0000000000000000000000000000000000000000..ecd960938ed5517a765770fe181b094bddae040c
--- /dev/null
+++ b/externals/fftease
@@ -0,0 +1 @@
+Subproject commit ecd960938ed5517a765770fe181b094bddae040c