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Diffstat (limited to 'ext/racc/cparse/cparse.c')
-rw-r--r--ext/racc/cparse/cparse.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/racc/cparse/cparse.c b/ext/racc/cparse/cparse.c
index 8614c10e09..f71ed2bba9 100644
--- a/ext/racc/cparse/cparse.c
+++ b/ext/racc/cparse/cparse.c
@@ -819,7 +819,7 @@ reduce0(RB_BLOCK_CALL_FUNC_ARGLIST(_, data))
void
Init_cparse(void)
{
-#if HAVE_RB_EXT_RACTOR_SAFE
+#ifdef HAVE_RB_EXT_RACTOR_SAFE
rb_ext_ractor_safe(true);
#endif