diff --git a/mozilla/docshell/base/nsWebShell.cpp b/mozilla/docshell/base/nsWebShell.cpp
index b1c2cd05314..9708a1d3a61 100644
--- a/mozilla/docshell/base/nsWebShell.cpp
+++ b/mozilla/docshell/base/nsWebShell.cpp
@@ -69,7 +69,7 @@
 #include "nsIDOMHTMLDocument.h"
 #include "nsLayoutCID.h"
 #include "nsIDOMRange.h"
-#include "nsIDOMDOcument.h"
+#include "nsIDOMDocument.h"
 #include "nsTimer.h"
 
 #include "nsILocaleService.h"
diff --git a/mozilla/webshell/src/nsWebShell.cpp b/mozilla/webshell/src/nsWebShell.cpp
index b1c2cd05314..9708a1d3a61 100644
--- a/mozilla/webshell/src/nsWebShell.cpp
+++ b/mozilla/webshell/src/nsWebShell.cpp
@@ -69,7 +69,7 @@
 #include "nsIDOMHTMLDocument.h"
 #include "nsLayoutCID.h"
 #include "nsIDOMRange.h"
-#include "nsIDOMDOcument.h"
+#include "nsIDOMDocument.h"
 #include "nsTimer.h"
 
 #include "nsILocaleService.h"