diff --git a/setup_opencv.sh b/setup_opencv.sh
index 47c853744..d65a35c99 100644
--- a/setup_opencv.sh
+++ b/setup_opencv.sh
@@ -39,10 +39,10 @@ if [ -z "$1" ]
   then
     echo "Installing OpenCV from source"
     if [[ -x "$(command -v apt)" ]]; then
-      apt update && apt install build-essential git
-      apt install cmake ffmpeg libavformat-dev libdc1394-dev libgtk2.0-dev \
-                       libjpeg-dev libpng-dev libswscale-dev libtbb2 libtbb-dev \
-                       libtiff-dev
+      apt update && apt install -y build-essential git
+      apt install -y cmake ffmpeg libavformat-dev libdc1394-dev libgtk2.0-dev \
+              libjpeg-dev libpng-dev libswscale-dev libtbb2 libtbb-dev \
+              libtiff-dev
     elif [[ -x "$(command -v dnf)" ]]; then
       dnf update && dnf install cmake gcc gcc-c git
       dnf install ffmpeg-devel libdc1394-devel gtk2-devel \