diff --git a/Makefile b/Makefile
index bdb982d3e..378599bc5 100755
--- a/Makefile
+++ b/Makefile
@@ -982,6 +982,7 @@ endif
 ifdef CONFIG_LTO_CLANG
 ifdef CONFIG_LTO_CLANG_THIN
 CC_FLAGS_LTO	:= -flto=thin -fsplit-lto-unit
+KBUILD_LDFLAGS	+= --thinlto-cache-dir=$(extmod-prefix).thinlto-cache
 else
 CC_FLAGS_LTO	:= -flto
 endif