diff --git a/src/python/grpcio/grpc/_cython/_cygrpc/grpc_gevent.pxd b/src/python/grpcio/grpc/_cython/_cygrpc/grpc_gevent.pxd.pxi
similarity index 100%
rename from src/python/grpcio/grpc/_cython/_cygrpc/grpc_gevent.pxd
rename to src/python/grpcio/grpc/_cython/_cygrpc/grpc_gevent.pxd.pxi
diff --git a/src/python/grpcio/grpc/_cython/_cygrpc/grpc_gevent.pyx b/src/python/grpcio/grpc/_cython/_cygrpc/grpc_gevent.pyx.pxi
similarity index 100%
rename from src/python/grpcio/grpc/_cython/_cygrpc/grpc_gevent.pyx
rename to src/python/grpcio/grpc/_cython/_cygrpc/grpc_gevent.pyx.pxi
diff --git a/src/python/grpcio/grpc/_cython/cygrpc.pxd b/src/python/grpcio/grpc/_cython/cygrpc.pxd
index c8ace7c3cc8..e33c01c28f5 100644
--- a/src/python/grpcio/grpc/_cython/cygrpc.pxd
+++ b/src/python/grpcio/grpc/_cython/cygrpc.pxd
@@ -29,4 +29,4 @@ include "_cygrpc/server.pxd.pxi"
 include "_cygrpc/tag.pxd.pxi"
 include "_cygrpc/time.pxd.pxi"
 
-include "_cygrpc/grpc_gevent.pxd"
+include "_cygrpc/grpc_gevent.pxd.pxi"
diff --git a/src/python/grpcio/grpc/_cython/cygrpc.pyx b/src/python/grpcio/grpc/_cython/cygrpc.pyx
index f5f08fc9838..fb16fb16bfb 100644
--- a/src/python/grpcio/grpc/_cython/cygrpc.pyx
+++ b/src/python/grpcio/grpc/_cython/cygrpc.pyx
@@ -36,7 +36,7 @@ include "_cygrpc/server.pyx.pxi"
 include "_cygrpc/tag.pyx.pxi"
 include "_cygrpc/time.pyx.pxi"
 
-include "_cygrpc/grpc_gevent.pyx"
+include "_cygrpc/grpc_gevent.pyx.pxi"
 
 #
 # initialize gRPC