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-rw-r--r--ext/ffi_c/ffi.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/ext/ffi_c/ffi.c b/ext/ffi_c/ffi.c
index 22ea3bf..e297f8a 100644
--- a/ext/ffi_c/ffi.c
+++ b/ext/ffi_c/ffi.c
@@ -60,6 +60,10 @@ static VALUE moduleFFI = Qnil;
void
Init_ffi_c(void)
{
+ #ifdef HAVE_RB_EXT_RACTOR_SAFE
+ rb_ext_ractor_safe(1);
+ #endif
+
/*
* Document-module: FFI
*