diff --git a/mozilla/gfx/src/mac/nsDeviceContextMac.cpp b/mozilla/gfx/src/mac/nsDeviceContextMac.cpp
index ec7c1e238a7..2a7c2e355c6 100644
--- a/mozilla/gfx/src/mac/nsDeviceContextMac.cpp
+++ b/mozilla/gfx/src/mac/nsDeviceContextMac.cpp
@@ -120,7 +120,7 @@ NS_IMETHODIMP nsDeviceContextMac :: CheckFontExistence(const nsString& aFontName
 
 //------------------------------------------------------------------------
 
-NS_IMETHODIMP nsDeviceContextWin :: ConvertPixel(nscolor aColor, PRUint32 & aPixel)
+NS_IMETHODIMP nsDeviceContextMac :: ConvertPixel(nscolor aColor, PRUint32 & aPixel)
 {
   aPixel = aColor;
   return NS_OK;
diff --git a/mozilla/widget/src/mac/nsDeviceContextMac.cpp b/mozilla/widget/src/mac/nsDeviceContextMac.cpp
index ec7c1e238a7..2a7c2e355c6 100644
--- a/mozilla/widget/src/mac/nsDeviceContextMac.cpp
+++ b/mozilla/widget/src/mac/nsDeviceContextMac.cpp
@@ -120,7 +120,7 @@ NS_IMETHODIMP nsDeviceContextMac :: CheckFontExistence(const nsString& aFontName
 
 //------------------------------------------------------------------------
 
-NS_IMETHODIMP nsDeviceContextWin :: ConvertPixel(nscolor aColor, PRUint32 & aPixel)
+NS_IMETHODIMP nsDeviceContextMac :: ConvertPixel(nscolor aColor, PRUint32 & aPixel)
 {
   aPixel = aColor;
   return NS_OK;