diff --git a/.travis/install.sh b/.travis/install.sh
index 4d78446fc74..5cb280eff6a 100644
--- a/.travis/install.sh
+++ b/.travis/install.sh
@@ -18,7 +18,7 @@ do
   DONE=1 && sudo -E apt-get -yq --no-install-suggests --no-install-recommends --force-yes install clang-3.6 zsh \
 flex bison cmake graphviz libgmp-dev libmpfr-dev libmpfi-dev zlib1g-dev libeigen3-dev  libboost1.55-dev \
 libboost-system1.55-dev libboost-program-options1.55-dev libboost-thread1.55-dev libboost-iostreams1.55-dev \
-qt55base qt55script qt55svg qt55tools qt55graphicaleffects libopencv-dev mesa-common-dev libmetis-dev libglu1-mesa-dev \
+qt55base qt55script qt55svg qt55tools qt55graphicaleffects libopencv-dev libopencv-ml-dev mesa-common-dev libmetis-dev libglu1-mesa-dev \
 || DONE=0 && sudo apt-get update
 done
 exit 0