diff --git a/src/cmd/dist/build.c b/src/cmd/dist/build.c
index e3b3c73af30..51503e2800b 100644
--- a/src/cmd/dist/build.c
+++ b/src/cmd/dist/build.c
@@ -452,7 +452,7 @@ static char *proto_gccargs[] = {
 	// Fix available at http://patchwork.ozlabs.org/patch/64562/.
 	"-O1",
 #else
-	"-O0",
+	"-O2",
 #endif
 };