diff --git a/mozilla/content/html/document/src/nsMarkupDocument.cpp b/mozilla/content/html/document/src/nsMarkupDocument.cpp
index 432ed96a887..91981b0f4d3 100644
--- a/mozilla/content/html/document/src/nsMarkupDocument.cpp
+++ b/mozilla/content/html/document/src/nsMarkupDocument.cpp
@@ -23,7 +23,6 @@
 #include "nsIURL.h"
 #include "nsIDOMElement.h"
 
-#include "nsCSSPropIDs.h"
 #include "nsCSSProps.h"
 #include "nsICSSStyleSheet.h"
 #include "nsICSSStyleRule.h"
diff --git a/mozilla/layout/html/document/src/nsMarkupDocument.cpp b/mozilla/layout/html/document/src/nsMarkupDocument.cpp
index 432ed96a887..91981b0f4d3 100644
--- a/mozilla/layout/html/document/src/nsMarkupDocument.cpp
+++ b/mozilla/layout/html/document/src/nsMarkupDocument.cpp
@@ -23,7 +23,6 @@
 #include "nsIURL.h"
 #include "nsIDOMElement.h"
 
-#include "nsCSSPropIDs.h"
 #include "nsCSSProps.h"
 #include "nsICSSStyleSheet.h"
 #include "nsICSSStyleRule.h"