diff --git a/hare.spec b/hare.spec
index 856b0a9..1306ea8 100644
--- a/hare.spec
+++ b/hare.spec
@@ -64,7 +64,7 @@ STDLIB = %{_libdir}/%{name}/stdlib
 PLATFORM = linux
 ARCH = %{_arch}
 HAREFLAGS =
-HARECFLAGS =
+HARECFLAGS = %{optflags}
 QBEFLAGS =
 ASFLAGS =
 LDLINKFLAGS = --gc-sections -z noexecstack