diff --git a/gfx/thebes/public/gfxPangoFonts.h b/gfx/thebes/public/gfxPangoFonts.h
index 32aba7ddb1b6..6bd653f7d658 100644
--- a/gfx/thebes/public/gfxPangoFonts.h
+++ b/gfx/thebes/public/gfxPangoFonts.h
@@ -73,7 +73,7 @@ public:
 
     virtual gfxTextRun *MakeTextRun(const nsAString& aString);
     virtual gfxTextRun *MakeTextRun(const nsACString& aCString) {
-        return MakeTextRun(NS_ConvertASCIItoUTF16(aCString));
+        return MakeTextRun(*NS_ConvertASCIItoUTF16(aCString));
     }
 
     gfxPangoFont *GetFontAt(PRInt32 i) {
diff --git a/gfx/thebes/src/gfxPangoFonts.cpp b/gfx/thebes/src/gfxPangoFonts.cpp
index cbac8e1e6b46..c5a597e8711f 100644
--- a/gfx/thebes/src/gfxPangoFonts.cpp
+++ b/gfx/thebes/src/gfxPangoFonts.cpp
@@ -168,13 +168,7 @@ gfxPangoFontGroup::~gfxPangoFontGroup()
 gfxTextRun*
 gfxPangoFontGroup::MakeTextRun(const nsAString& aString)
 {
-    return new gfxPangoTextRun(&aString, this);
-}
-
-gfxTextRun*
-gfxPangoFontGroup::MakeTextRun(const nsACString& aString)
-{
-    return new gfxPangoTextRun(&aString, this);
+    return new gfxPangoTextRun(*aString, this);
 }
 
 /**