diff --git a/src/SPC/builder/unix/library/grpc.php b/src/SPC/builder/unix/library/grpc.php
index 40e042a5..941e74f1 100644
--- a/src/SPC/builder/unix/library/grpc.php
+++ b/src/SPC/builder/unix/library/grpc.php
@@ -12,13 +12,12 @@ trait grpc
     {
         UnixCMakeExecutor::create($this)
             ->addConfigureArgs(
-                '-DgRPC_SSL_PROVIDER=openssl',
+                '-DgRPC_SSL_PROVIDER=package',
                 '-DgRPC_INSTALL_BINDIR=' . BUILD_BIN_PATH,
                 '-DgRPC_INSTALL_LIBDIR=' . BUILD_LIB_PATH,
                 '-DgRPC_INSTALL_SHAREDIR=' . BUILD_ROOT_PATH . '/share/grpc',
-                '-DOPENSSL_ROOT_DIR=' . BUILD_ROOT_PATH,
-                '-DOPENSSL_INCLUDE_DIR=' . BUILD_INCLUDE_PATH,
-                '-DCMAKE_CXX_FLAGS="-DGRPC_POSIX_FORK_ALLOW_PTHREAD_ATFORK"'
+                '-DCMAKE_C_FLAGS="-DGRPC_POSIX_FORK_ALLOW_PTHREAD_ATFORK -L' . BUILD_LIB_PATH . ' -I' . BUILD_INCLUDE_PATH . '"',
+                '-DCMAKE_CXX_FLAGS="-DGRPC_POSIX_FORK_ALLOW_PTHREAD_ATFORK -L' . BUILD_LIB_PATH . ' -I' . BUILD_INCLUDE_PATH . '"'
             )
             ->build();
         copy($this->source_dir . '/third_party/re2/re2.pc', BUILD_LIB_PATH . '/pkgconfig/re2.pc');