diff --git a/asm/field_map_obj.s b/asm/field_map_obj.s
index 6316bd0b7..b6ce802ff 100644
--- a/asm/field_map_obj.s
+++ b/asm/field_map_obj.s
@@ -5,35 +5,6 @@
 
 	.text
 
-	thumb_func_start pal_patch_for_npc
-@ void pal_patch_for_npc(u16 tag, u8 slot)
-pal_patch_for_npc: @ 808E91C
-	push {r4,lr}
-	adds r4, r1, 0
-	lsls r0, 16
-	lsrs r0, 16
-	lsls r4, 24
-	lsrs r4, 24
-	bl FindFieldObjectPaletteIndexByTag
-	lsls r0, 24
-	ldr r1, =gUnknown_0850BBC8
-	lsrs r0, 21
-	adds r0, r1
-	ldr r0, [r0]
-	lsls r4, 20
-	movs r1, 0x80
-	lsls r1, 17
-	adds r4, r1
-	lsrs r4, 16
-	adds r1, r4, 0
-	movs r2, 0x20
-	bl LoadPalette
-	pop {r4}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end pal_patch_for_npc
-
 	thumb_func_start pal_patch_for_npc_range
 @ void pal_patch_for_npc_range(u16 *tags, u8 minSlot, u8 maxSlot)
 pal_patch_for_npc_range: @ 808E954
diff --git a/src/field_map_obj.c b/src/field_map_obj.c
index ccc88db15..c8d147e6d 100644
--- a/src/field_map_obj.c
+++ b/src/field_map_obj.c
@@ -6,6 +6,7 @@
 #include "rom4.h"
 #include "data3.h"
 #include "berry.h"
+#include "palette.h"
 #include "field_player_avatar.h"
 #include "event_data.h"
 #include "rom_818CFC8.h"
@@ -1144,3 +1145,11 @@ u8 sub_808E8F4(const struct SpritePalette *spritePalette)
     }
     return LoadSpritePalette(spritePalette);
 }
+
+void pal_patch_for_npc(u16 paletteTag, u8 paletteSlot)
+{
+    u8 paletteIdx;
+
+    paletteIdx = FindFieldObjectPaletteIndexByTag(paletteTag);
+    LoadPalette(gUnknown_0850BBC8[paletteIdx].data, 16 * paletteSlot + 256, 0x20);
+}