diff --git a/src/pixie/blends.nim b/src/pixie/blends.nim
index 080bb1f..d2f927e 100644
--- a/src/pixie/blends.nim
+++ b/src/pixie/blends.nim
@@ -477,10 +477,13 @@ proc maskNormal(backdrop, source: uint8): uint8 =
   ## Blending masks
   blendAlpha(backdrop, source)
 
-proc maskMask*(backdrop, source: uint8): uint8 =
+proc maskMaskInline*(backdrop, source: uint8): uint8 {.inline.} =
   ## Masking masks
   ((backdrop.uint32 * source) div 255).uint8
 
+proc maskMask(backdrop, source: uint8): uint8 =
+  maskMaskInline(backdrop, source)
+
 proc maskSubtract(backdrop, source: uint8): uint8 =
   ((backdrop.uint32 * (255 - source)) div 255).uint8
 
diff --git a/src/pixie/images.nim b/src/pixie/images.nim
index bcd952d..f791c64 100644
--- a/src/pixie/images.nim
+++ b/src/pixie/images.nim
@@ -978,7 +978,7 @@ proc drawUber(
               a.unsafe[x, y] = 0
             elif source != 255:
               let backdrop = a.unsafe[x, y]
-              a.unsafe[x, y] = maskMask(backdrop, source)
+              a.unsafe[x, y] = maskMaskInline(backdrop, source)
           srcPos += dx
       else:
         for x in x ..< xMax: