diff --git a/MANIFEST.in b/MANIFEST.in
index c766a2ca137757091f5e22c05d7d9435d5747f3c..89c7cb4d98214c2d9dd9b4eb5d21a63a00e433d5 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,10 +1,8 @@
 recursive-include pyopencl/cl *.h *.cl
 
-include src/c_wrapper/*.hpp
-include src/c_wrapper/*.h
-include src/c_wrapper/*.cpp
-include src/c_wrapper/mingw-std-threads/mingw.*.h
-include src/c_wrapper/mingw-std-threads/README.md
+include src/*.h
+include src/*.hpp
+include src/*.cpp
 include *.h
 include test/*.py
 include test/*.h