diff --git a/.github/workflows/osx.sh b/.github/workflows/osx.sh
index 8f4ce95..30bd66a 100755
--- a/.github/workflows/osx.sh
+++ b/.github/workflows/osx.sh
@@ -24,6 +24,7 @@ function install_libmustache() (
     cd libmustache
     git checkout ${LIBMUSTACHE_VERSION}
     autoreconf -i
+    ./configure --without-mustache-spec
     make
     make install
 )