diff --git a/data/mauville_old_man.s b/data/mauville_old_man.s
index 539cace62..70146bfe4 100644
--- a/data/mauville_old_man.s
+++ b/data/mauville_old_man.s
@@ -5,13 +5,30 @@
 	.align 2, 0
 
 gUnknown_0859EFE4:: @ 859EFE4
-	.incbin "baserom.gba", 0x59efe4, 0xc
+@ replacing .incbin "baserom.gba", 0x0059efe4, 0xc
+.2byte 0x2811, 0x1029, 0x1018, 0x0e0d, 0x1a1a, 0x1a1d
 
 gUnknown_0859EFF0:: @ 859EFF0
-	.incbin "baserom.gba", 0x59eff0, 0x20
+@ replacing .incbin "baserom.gba", 0x0059eff0, 0x20
+.4byte 0x8294295
+.4byte 0x82942a1
+.4byte 0x82942ae
+.4byte 0x82942bb
+.4byte 0x82942c6
+.4byte 0x82942d5
+.4byte 0x82942e3
+.4byte 0x82942f0
 
 gUnknown_0859F010:: @ 859F010
-	.incbin "baserom.gba", 0x59f010, 0x20
+@ replacing .incbin "baserom.gba", 0x0059f010, 0x20
+.4byte 0x8294313
+.4byte 0x8294359
+.4byte 0x8294398
+.4byte 0x82943da
+.4byte 0x829441c
+.4byte 0x8294460
+.4byte 0x82944a0
+.4byte 0x82944d5
 
 gUnknown_0859F030:: @ 859F030
 	.incbin "baserom.gba", 0x59f030, 0x18
@@ -23,4 +40,6 @@ gUnknown_0859F278:: @ 859F278
 	.incbin "baserom.gba", 0x59f278, 0x10
 
 gUnknown_0859F288:: @ 859F288
-	.incbin "baserom.gba", 0x59f288, 0x8
+@ replacing .incbin "baserom.gba", 0x0059f288, 0x8
+.4byte 0x00000024, 0x00000008
+