diff --git a/asm/pokenav.s b/asm/pokenav.s
index 92cde018a..64439e890 100644
--- a/asm/pokenav.s
+++ b/asm/pokenav.s
@@ -5,18 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_81C72A4
-sub_81C72A4: @ 81C72A4
-	push {lr}
-	ldr r0, =sub_81C72BC
-	bl SetMainCallback2
-	movs r0, 0x1
-	movs r1, 0
-	bl FadeScreen
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_81C72A4
 
 	thumb_func_start sub_81C72BC
 sub_81C72BC: @ 81C72BC
diff --git a/src/pokenav_main.c b/src/pokenav_main.c
index 437ca009f..13b6331a5 100644
--- a/src/pokenav_main.c
+++ b/src/pokenav_main.c
@@ -3,6 +3,7 @@
 #include "task.h"
 #include "main.h"
 #include "overworld.h"
+#include "field_weather.h"
 
 /*
 
@@ -172,4 +173,26 @@ void CB2_PokeNav(void)
         SetMainCallback2(sub_81C7400);
         SetVBlankCallback(sub_81C7418);
     }
+}
+
+/*
+	thumb_func_start sub_81C72A4
+sub_81C72A4: @ 81C72A4
+	push {lr}
+	ldr r0, =sub_81C72BC
+	bl SetMainCallback2
+	movs r0, 0x1
+	movs r1, 0
+	bl FadeScreen
+	pop {r0}
+	bx r0
+	.pool
+	thumb_func_end sub_81C72A4
+*/
+
+extern void sub_81C72BC(void);
+
+void sub_81C72A4() {
+	SetMainCallback2(sub_81C72BC);
+	FadeScreen(1, 0);
 }
\ No newline at end of file