diff --git a/modules/bullet/SCsub b/modules/bullet/SCsub
index b82eddde1cb..2557e8cb1dd 100644
--- a/modules/bullet/SCsub
+++ b/modules/bullet/SCsub
@@ -68,7 +68,7 @@ if env['builtin_bullet']:
         , "BulletCollision/CollisionShapes/btEmptyShape.cpp"
         , "BulletCollision/CollisionShapes/btHeightfieldTerrainShape.cpp"
         , "BulletCollision/CollisionShapes/btMinkowskiSumShape.cpp"
-	, "BulletCollision/CollisionShapes/btMiniSDF.cpp"
+        , "BulletCollision/CollisionShapes/btMiniSDF.cpp"
         , "BulletCollision/CollisionShapes/btMultimaterialTriangleMeshShape.cpp"
         , "BulletCollision/CollisionShapes/btMultiSphereShape.cpp"
         , "BulletCollision/CollisionShapes/btOptimizedBvh.cpp"