diff --git a/install.sh b/install.sh
index 38075646b..1c479d86e 100755
--- a/install.sh
+++ b/install.sh
@@ -159,7 +159,7 @@ install_msgpack_from_source( )
       cd "${build_dir}/deps"
       git clone -b cpp-3.0.1 https://github.com/msgpack/msgpack-c.git
       cd msgpack-c
-      ${cmake_executable} .
+      ${cmake_executable} -DMSGPACK_BUILD_TESTS=OFF .
       make
       elevate_if_not_root make install
       popd