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-rw-r--r--ext/psych/psych_emitter.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/psych/psych_emitter.c b/ext/psych/psych_emitter.c
index f0d032649c5..d833b59c064 100644
--- a/ext/psych/psych_emitter.c
+++ b/ext/psych/psych_emitter.c
@@ -504,7 +504,7 @@ static VALUE set_line_width(VALUE self, VALUE width)
return width;
}
-void Init_psych_emitter()
+void Init_psych_emitter(void)
{
VALUE psych = rb_define_module("Psych");
VALUE handler = rb_define_class_under(psych, "Handler", rb_cObject);