diff --git a/build-constraints.yaml b/build-constraints.yaml
index f42f2134..1cc58927 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2,8 +2,8 @@ ghc-major-version: "8.0"
 # Constraints for brand new builds
 packages:
     "Bas van Dijk <v.dijk.bas@gmail.com> @basvandijk": []
-        # - opencv # https://github.com/fpco/stackage/pull/2597#issuecomment-310930926
-        # - opencv-extra # https://github.com/fpco/stackage/pull/2597#issuecomment-310930926
+        - opencv
+        - opencv-extra
 
     "Pasqualino Assini <tittoassini@gmail.com> @tittoassini":
         - zm
diff --git a/debian-bootstrap.sh b/debian-bootstrap.sh
index 4610d04e..8d22fa0a 100755
--- a/debian-bootstrap.sh
+++ b/debian-bootstrap.sh
@@ -250,7 +250,7 @@ mkdir build
 cd build
 cmake -D CMAKE_BUILD_TYPE=RELEASE \
       -D CMAKE_INSTALL_PREFIX=/usr/local \
-      -D OPENCV_EXTRA_MODULES_PATH=/tmp/opencv-build/opencv_contrib-${OPENCV_VERSION}/modules
+      -D OPENCV_EXTRA_MODULES_PATH=/tmp/opencv-build/opencv_contrib-${OPENCV_VERSION}/modules ..
 
 make -j