diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7446fbd..55e9adc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -104,7 +104,6 @@ endforeach()
 set_source_files_properties(${ALL_PROTO_SRCS} ${ALL_PROTO_HDRS} PROPERTIES GENERATED TRUE)
 list(APPEND ALL_LIBRARY_HDRS ${ALL_PROTO_HDRS})
 list(APPEND ALL_LIBRARY_SRCS ${ALL_PROTO_SRCS})
-set(INSTALL_GENERATED_HDRS ${ALL_PROTO_HDRS})
 
 if(${BUILD_GRPC})
   set(ALL_GRPC_SERVICE_SRCS)
@@ -137,6 +136,7 @@ if(${BUILD_GRPC})
   list(APPEND ALL_LIBRARY_HDRS ${ALL_GRPC_SERVICE_HDRS})
   list(APPEND ALL_LIBRARY_SRCS ${ALL_GRPC_SERVICE_SRCS})
 endif()
+set(INSTALL_GENERATED_HDRS ${ALL_PROTO_HDRS} ${ALL_GRPC_SERVICE_HDRS})
 
 add_library(${PROJECT_NAME} ${ALL_LIBRARY_HDRS} ${ALL_LIBRARY_SRCS})