diff --git a/gflib/bg.c b/gflib/bg.c
index eb00fa7c79..c96bcbc233 100644
--- a/gflib/bg.c
+++ b/gflib/bg.c
@@ -776,17 +776,6 @@ void SetBgAffine(u8 bg, s32 srcCenterX, s32 srcCenterY, s16 dispCenterX, s16 dis
     SetBgAffineInternal(bg, srcCenterX, srcCenterY, dispCenterX, dispCenterY, scaleX, scaleY, rotationAngle);
 }
 
-enum
-{
-    MOSAIC_SET_HV,
-    MOSAIC_SET_H,
-    MOSAIC_ADD_H,
-    MOSAIC_SUB_H,
-    MOSAIC_SET_V,
-    MOSAIC_ADD_V,
-    MOSAIC_SUB_V,
-};
-
 u8 Unused_AdjustBgMosaic(u8 val, u8 mode)
 {
     u16 mosaic = GetGpuReg(REG_OFFSET_MOSAIC);
@@ -797,15 +786,15 @@ u8 Unused_AdjustBgMosaic(u8 val, u8 mode)
 
     switch (mode)
     {
-    case MOSAIC_SET_HV:
+    case BG_MOSAIC_SET_HV:
     default:
         bgH = val & 0xF;
         bgV = val >> 0x4;
         break;
-    case MOSAIC_SET_H:
+    case BG_MOSAIC_SET_H:
         bgH = val & 0xF;
         break;
-    case MOSAIC_ADD_H:
+    case BG_MOSAIC_ADD_H:
         if ((bgH + val) > 0xF)
         {
             bgH = 0xF;
@@ -815,7 +804,7 @@ u8 Unused_AdjustBgMosaic(u8 val, u8 mode)
             bgH += val;
         }
         break;
-    case MOSAIC_SUB_H:
+    case BG_MOSAIC_SUB_H:
         if ((bgH - val) < 0)
         {
             bgH = 0x0;
@@ -825,10 +814,10 @@ u8 Unused_AdjustBgMosaic(u8 val, u8 mode)
             bgH -= val;
         }
         break;
-    case MOSAIC_SET_V:
+    case BG_MOSAIC_SET_V:
         bgV = val & 0xF;
         break;
-    case MOSAIC_ADD_V:
+    case BG_MOSAIC_ADD_V:
         if ((bgV + val) > 0xF)
         {
             bgV = 0xF;
@@ -838,7 +827,7 @@ u8 Unused_AdjustBgMosaic(u8 val, u8 mode)
             bgV += val;
         }
         break;
-    case MOSAIC_SUB_V:
+    case BG_MOSAIC_SUB_V:
         if ((bgV - val) < 0)
         {
             bgV = 0x0;
diff --git a/gflib/bg.h b/gflib/bg.h
index 3a0bf3bf90..d8b5a54043 100644
--- a/gflib/bg.h
+++ b/gflib/bg.h
@@ -28,6 +28,17 @@ enum {
 	BG_COORD_SUB,
 };
 
+// Modes for Unused_AdjustBgMosaic
+enum {
+    BG_MOSAIC_SET_HV,
+    BG_MOSAIC_SET_H,
+    BG_MOSAIC_ADD_H,
+    BG_MOSAIC_SUB_H,
+    BG_MOSAIC_SET_V,
+    BG_MOSAIC_ADD_V,
+    BG_MOSAIC_SUB_V,
+};
+
 struct BgTemplate
 {
     u16 bg:2;                   // 0x1, 0x2 -> 0x3