diff --git a/MANIFEST.in b/MANIFEST.in
index 22f076658..f6dce7248 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -7,6 +7,8 @@ include elephant/VERSION
 include elephant/current_source_density_src/README.md
 include elephant/current_source_density_src/test_data.mat
 include elephant/spade_src/LICENSE
+include elephant/spade_src/src/fim.cpp
+recursive-include elephant/spade_src/include *.h
 include elephant/test/spike_extraction_test_data.txt
 recursive-include doc *
 prune doc/_build