diff --git a/CMakeLists.txt b/CMakeLists.txt
index c85a20a..99b2897 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3694,6 +3694,7 @@ target_link_libraries(qps
 
 endif (gRPC_BUILD_TESTS)
 
+option(gRPC_INSTALL_CSHARP_EXT "" ON)
 add_library(grpc_csharp_ext SHARED
   src/csharp/ext/grpc_csharp_ext.c
 )
@@ -3702,7 +3703,7 @@ if(WIN32 AND MSVC)
   set_target_properties(grpc_csharp_ext PROPERTIES COMPILE_PDB_NAME "grpc_csharp_ext"
     COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
   )
-  if (gRPC_INSTALL)
+  if (gRPC_INSTALL AND gRPC_INSTALL_CSHARP_EXT)
     install(FILES ${CMAKE_CURRENT_BINARY_DIR}/grpc_csharp_ext.pdb
       DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
     )
@@ -3728,8 +3729,7 @@ target_link_libraries(grpc_csharp_ext
 )
 
 
-
-if (gRPC_INSTALL)
+if (gRPC_INSTALL AND gRPC_INSTALL_CSHARP_EXT)
   install(TARGETS grpc_csharp_ext EXPORT gRPCTargets
     RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
     LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}