diff --git a/.docker/build-linux.sh b/.docker/build-linux.sh
index 4063124ac..d9d348f71 100644
--- a/.docker/build-linux.sh
+++ b/.docker/build-linux.sh
@@ -15,7 +15,7 @@ cd build
 
 case "-$BUILD_TYPE-" in
   *-ninja-*)
-    BUILD_TOOL=ninja
+    BUILD_TOOL="ninja -d explain -v"
     CMAKE_ARGS="-GNinja"
     ;;
   *-make-*)