diff --git a/cc/makevars.go b/cc/makevars.go
index 8bf034a..a1e97a5 100644
--- a/cc/makevars.go
+++ b/cc/makevars.go
@@ -42,6 +42,7 @@
 	ctx.Strict("RS_LLVM_PREBUILTS_VERSION", "${config.RSClangVersion}")
 	ctx.Strict("RS_LLVM_PREBUILTS_BASE", "${config.RSClangBase}")
 	ctx.Strict("RS_LLVM_PREBUILTS_PATH", "${config.RSLLVMPrebuiltsPath}")
+	ctx.Strict("RS_LLVM_INCLUDES", "${config.RSIncludePath}")
 	ctx.Strict("RS_CLANG", "${config.RSLLVMPrebuiltsPath}/clang")
 	ctx.Strict("RS_LLVM_AS", "${config.RSLLVMPrebuiltsPath}/llvm-as")
 	ctx.Strict("RS_LLVM_LINK", "${config.RSLLVMPrebuiltsPath}/llvm-link")