diff --git a/asm/field_map_obj.s b/asm/field_map_obj.s
index b6ce802ff3..9f880e0c12 100644
--- a/asm/field_map_obj.s
+++ b/asm/field_map_obj.s
@@ -5,33 +5,6 @@
 
 	.text
 
-	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
-	push {r4-r6,lr}
-	adds r5, r0, 0
-	lsls r1, 24
-	lsrs r4, r1, 24
-	lsls r2, 24
-	lsrs r6, r2, 24
-	cmp r4, r6
-	bcs _0808E978
-_0808E964:
-	ldrh r0, [r5]
-	adds r1, r4, 0
-	bl pal_patch_for_npc
-	adds r5, 0x2
-	adds r0, r4, 0x1
-	lsls r0, 24
-	lsrs r4, r0, 24
-	cmp r4, r6
-	bcc _0808E964
-_0808E978:
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	thumb_func_end pal_patch_for_npc_range
-
 	thumb_func_start FindFieldObjectPaletteIndexByTag
 @ u8 FindFieldObjectPaletteIndexByTag(u16 tag)
 FindFieldObjectPaletteIndexByTag: @ 808E980
diff --git a/src/field_map_obj.c b/src/field_map_obj.c
index c8d147e6d7..4e785e969e 100644
--- a/src/field_map_obj.c
+++ b/src/field_map_obj.c
@@ -1153,3 +1153,13 @@ void pal_patch_for_npc(u16 paletteTag, u8 paletteSlot)
     paletteIdx = FindFieldObjectPaletteIndexByTag(paletteTag);
     LoadPalette(gUnknown_0850BBC8[paletteIdx].data, 16 * paletteSlot + 256, 0x20);
 }
+
+void pal_patch_for_npc_range(u16 *paletteTags, u8 minSlot, u8 maxSlot)
+{
+    while (minSlot < maxSlot)
+    {
+        pal_patch_for_npc(*paletteTags, minSlot);
+        paletteTags ++;
+        minSlot ++;
+    }
+}