diff --git a/package/osx/travis-build-cpp.sh b/package/osx/travis-build-cpp.sh
index 078593aff5..b23c37c935 100755
--- a/package/osx/travis-build-cpp.sh
+++ b/package/osx/travis-build-cpp.sh
@@ -9,6 +9,7 @@ mkdir -p $CACHE
 ( sudo Xvfb :99 -ac -screen 0 1024x768x8; echo ok )&
 brew update -v
 brew install ccache || brew upgrade ccache
+brew install coreutils || brew upgrade coreutils
 
 if [[ "$WXVERSION" != "pkg" ]]; then
     WXVER_EXPANDED=${WXVERSION:0:1}.${WXVERSION:1:1}.${WXVERSION:2:1}
@@ -33,4 +34,4 @@ mkdir build && cd build
 cmake -DBOOST_ROOT=$HOME/boost_1_63_0 -DSLIC3R_STATIC=ON -DCMAKE_BUILD_TYPE=Release ../src
 cmake --build .
 ./slic3r_test -s
-#./gui_test -s
\ No newline at end of file
+#./gui_test -s