ipa: Explain that one needs to get the IP address of the BTS as argument
diff --git a/openbsc/src/ipaccess/ipaccess-config.c b/openbsc/src/ipaccess/ipaccess-config.c
index e66771a..c42c7bb 100644
--- a/openbsc/src/ipaccess/ipaccess-config.c
+++ b/openbsc/src/ipaccess/ipaccess-config.c
@@ -791,7 +791,7 @@
 
 static void print_usage(void)
 {
-	printf("Usage: ipaccess-config\n");
+	printf("Usage: ipaccess-config IP_OF_BTS\n");
 }
 
 static void print_help(void)