diff --git a/src/pcu_main.cpp b/src/pcu_main.cpp
index 2a5f2c7..ea507e5 100644
--- a/src/pcu_main.cpp
+++ b/src/pcu_main.cpp
@@ -48,8 +48,8 @@
 		int option_idx = 0, c;
 		static const struct option long_options[] = {
 			{ "help", 0, 0, 'h' },
-			{ "mcc", 0, 0, 'm' },
-			{ "mnc", 0, 0, 'n' },
+			{ "mcc", 1, 0, 'm' },
+			{ "mnc", 1, 0, 'n' },
 			{ 0, 0, 0, 0 }
 		};