diff --git a/cc/gen.go b/cc/gen.go
index f22a783..c794f5c 100644
--- a/cc/gen.go
+++ b/cc/gen.go
@@ -25,7 +25,7 @@
 )
 
 func init() {
-	pctx.SourcePathVariable("lexCmd", "prebuilts/misc/${config.HostPrebuiltTag}/flex/flex-2.5.39")
+	pctx.SourcePathVariable("lexCmd", "prebuilts/build-tools/${config.HostPrebuiltTag}/bin/flex")
 	pctx.SourcePathVariable("yaccCmd", "prebuilts/build-tools/${config.HostPrebuiltTag}/bin/bison")
 	pctx.SourcePathVariable("yaccDataDir", "prebuilts/build-tools/common/bison")