diff --git a/intern/cycles/bvh/bvh_build.cpp b/intern/cycles/bvh/bvh_build.cpp
index 190f57ba455..14f66aca70f 100644
--- a/intern/cycles/bvh/bvh_build.cpp
+++ b/intern/cycles/bvh/bvh_build.cpp
@@ -588,7 +588,7 @@ BVHNode* BVHBuild::build_node(const BVHRange& range,
 	float unalignedSplitSAH = FLT_MAX;
 	/* float unalignedLeafSAH = FLT_MAX; */
 	Transform aligned_space;
-	bool do_unalinged_split;
+	bool do_unalinged_split = false;
 	if(params.use_unaligned_nodes &&
 	   splitSAH > params.unaligned_split_threshold*leafSAH)
 	{