diff --git a/.gitmodules b/.gitmodules
index c23fbf7e50..65b8d43227 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -18,3 +18,6 @@
 	path = modules/sampcon
 	url = https://github.com/salilab/imp-sampcon.git
 	branch = imp_module
+[submodule "modules/bff"]
+	path = modules/bff
+	url = https://github.com/Fluorescence-Tools/IMP.bff.git
diff --git a/modules/bff b/modules/bff
new file mode 160000
index 0000000000..6350c9aab4
--- /dev/null
+++ b/modules/bff
@@ -0,0 +1 @@
+Subproject commit 6350c9aab48b1b523ed575503ecad7929441a73b