diff --git a/MANIFEST.in b/MANIFEST.in
index 8d92fca..e90c111 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -86,6 +86,7 @@ include  sample/testSmooth.cpp
 include  sample/test_cosmopower.cpp
 include  sample/test_fft_calls.cpp
 include  sample/test_healpix_calls.cpp
+include  sample/test_special.cpp
 include  sample/testkd.cpp
 include  sample/testkd2.cpp
 include  sample/testkd3.cpp