diff --git a/layout/style/nsStyleContext.cpp b/layout/style/nsStyleContext.cpp
index 1e17ab156b4..dcfb81cda9a 100644
--- a/layout/style/nsStyleContext.cpp
+++ b/layout/style/nsStyleContext.cpp
@@ -43,18 +43,13 @@
 #include "nsString.h"
 #include "nsPresContext.h"
 #include "nsIStyleRule.h"
-#include "nsCRT.h"
 
 #include "nsCOMPtr.h"
 #include "nsStyleSet.h"
 #include "nsIPresShell.h"
-#include "prenv.h"
 
 #include "nsRuleNode.h"
 #include "nsStyleContext.h"
-#include "imgIRequest.h"
-
-#include "nsPrintfCString.h"
 
 #ifdef DEBUG
 // #define NOISY_DEBUG