diff --git a/channels/chan_dahdi.c b/channels/chan_dahdi.c
index 97975867b2..ebd2a59f5e 100644
--- a/channels/chan_dahdi.c
+++ b/channels/chan_dahdi.c
@@ -7406,7 +7406,7 @@ static struct ast_channel *dahdi_new(struct dahdi_pvt *i, int state, int startpb
 			deflaw = AST_FORMAT_ULAW;
 	}
 	ast_channel_set_fd(tmp, 0, i->subs[idx].dfd);
-	tmp->nativeformats = AST_FORMAT_SLINEAR | deflaw;
+	tmp->nativeformats = deflaw;
 	/* Start out assuming ulaw since it's smaller :) */
 	tmp->rawreadformat = deflaw;
 	tmp->readformat = deflaw;