diff --git a/src/input/misdn.c b/src/input/misdn.c
index 4bc2e4b..3ccfc4d 100644
--- a/src/input/misdn.c
+++ b/src/input/misdn.c
@@ -384,8 +384,8 @@
 	return ret;
 }
 
-static int
-mi_e1_line_update(struct e1inp_line *line, enum e1inp_line_role role);
+static int mi_e1_line_update(struct e1inp_line *line,
+			     enum e1inp_line_role role, const char *addr);
 
 struct e1inp_driver misdn_driver = {
 	.name = "misdn",
@@ -483,8 +483,8 @@
 	return 0;
 }
 
-static int
-mi_e1_line_update(struct e1inp_line *line, enum e1inp_line_role role)
+static int mi_e1_line_update(struct e1inp_line *line,
+			     enum e1inp_line_role role, const char *addr)
 {
 	struct mISDN_devinfo devinfo;
 	int sk, ret, cnt;