diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2ec7118..2962387 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -235,14 +235,7 @@ function(grpc_proto)
 		list(APPEND GRPC_PROTO_SRCS ${src_out}/${src_stem}.pb.cc)
 		list(APPEND GRPC_PROTO_HDRS ${src_out}/${src_stem}.pb.h)
 		make_directory(${src_out})
-		add_custom_command(
-												OUTPUT ${GRPC_PROTO_SRCS} ${GRPC_PROTO_HDRS}
-												COMMAND ${_PROTOBUF_PROTOC}
-												--cpp_out "${src_out}"
-												-I "${src_path}"
-												"${GRPC_PROTO_SOURCE}"
-												DEPENDS "${GRPC_PROTO_SOURCE}"
-								)
+		execute_process(COMMAND ${_PROTOBUF_PROTOC} --cpp_out "${src_out}" -I "${src_path}" "${GRPC_PROTO_SOURCE}")
 		target_sources(${GRPC_PROTO_TARGET} PRIVATE ${GRPC_PROTO_SRCS})
 		target_include_directories(${GRPC_PROTO_TARGET} PRIVATE ${src_out})
 	endforeach()
@@ -490,4 +483,4 @@ if(TESTS)
 	target_link_libraries(looper_tests PRIVATE liblooper)
 	target_link_libraries(liblooper PUBLIC gtest_main)
 	target_compile_definitions(liblooper PUBLIC TESTS)
-endif()
\ No newline at end of file
+endif()