diff --git a/src/pixie/fileformats/jpg.nim b/src/pixie/fileformats/jpg.nim
index 287ab89..9070ae5 100644
--- a/src/pixie/fileformats/jpg.nim
+++ b/src/pixie/fileformats/jpg.nim
@@ -1,6 +1,6 @@
 import pixie/images, pixie/common
 
-when defined(useStb):
+when defined(pixieUseStb):
   import pixie/fileformats/stb_image/stb_image
 
 const
@@ -8,8 +8,8 @@ const
 
 proc decodeJpg*(data: seq[uint8]): Image =
   ## Decodes the JPEG into an Image.
-  when not defined(useStb):
-    raise newException(PixieError, "Decoding JPG requires -d:useStb")
+  when not defined(pixieUseStb):
+    raise newException(PixieError, "Decoding JPG requires -d:pixieUseStb")
   else:
     var
       width: int
diff --git a/tests/test_jpg.nim b/tests/test_jpg.nim
index b495c9a..dea36ff 100644
--- a/tests/test_jpg.nim
+++ b/tests/test_jpg.nim
@@ -1,4 +1,4 @@
-when defined(useStb):
+when defined(pixieUseStb):
   import pixie/fileformats/jpg
 
   let