diff --git a/pixie.nimble b/pixie.nimble
index ee6c20a..f864919 100644
--- a/pixie.nimble
+++ b/pixie.nimble
@@ -1,4 +1,4 @@
-version     = "0.0.13"
+version     = "0.0.14"
 author      = "Andre von Houck and Ryan Oldenburg"
 description = "Full-featured 2d graphics library for Nim."
 license     = "MIT"
diff --git a/src/pixie/images.nim b/src/pixie/images.nim
index 3439251..92b2f4d 100644
--- a/src/pixie/images.nim
+++ b/src/pixie/images.nim
@@ -82,7 +82,7 @@ proc fill*(image: Image, rgba: ColorRgba) =
       # When supported, SIMD fill until we run out of room.
       let m = mm_set1_epi32(cast[int32](rgba))
       while i < image.data.len - 4:
-        mm_store_si128(image.data[i].addr, m)
+        mm_storeu_si128(image.data[i].addr, m)
         i += 4
     else:
       when sizeof(int) == 8:
@@ -99,13 +99,14 @@ proc fill*(image: Image, rgba: ColorRgba) =
 
 proc invert*(image: Image) =
   ## Inverts all of the colors and alpha.
-  let vec255 = mm_set1_epi8(255)
   var i: int
-  while i < image.data.len - 4:
-    var m = mm_loadu_si128(image.data[i].addr)
-    m = mm_sub_epi8(vec255, m)
-    mm_store_si128(image.data[i].addr, m)
-    i += 4
+  when defined(amd64):
+    let vec255 = mm_set1_epi8(255)
+    while i < image.data.len - 4:
+      var m = mm_loadu_si128(image.data[i].addr)
+      m = mm_sub_epi8(vec255, m)
+      mm_storeu_si128(image.data[i].addr, m)
+      i += 4
   for j in i ..< image.data.len:
     var rgba = image.data[j]
     rgba.r = 255 - rgba.r