diff --git a/CI/before_script.osx.sh b/CI/before_script.osx.sh
index 84c42725ab..a91eb3dc08 100755
--- a/CI/before_script.osx.sh
+++ b/CI/before_script.osx.sh
@@ -23,7 +23,7 @@ declare -a CMAKE_CONF_OPTS=(
 -D CMAKE_CXX_FLAGS="-stdlib=libc++"
 -D CMAKE_OSX_DEPLOYMENT_TARGET="14.5"
 -D OPENMW_USE_SYSTEM_OSG=TRUE
--D OPENMW_USE_SYSTEM_RECASTNAVIGATION=off
+-D OPENMW_USE_SYSTEM_RECASTNAVIGATION=TRUE
 -D Boost_INCLUDE_DIR="$DEPENDENCIES_ROOT/include"
 -D OSGPlugins_LIB_DIR="$DEPENDENCIES_ROOT/lib/osgPlugins-3.6.5"
 -D ICU_ROOT="$ICU_PATH"