diff --git a/intl/strres/src/nsStringBundle.cpp b/intl/strres/src/nsStringBundle.cpp
index d8fa0e41b464..723bceb500d8 100644
--- a/intl/strres/src/nsStringBundle.cpp
+++ b/intl/strres/src/nsStringBundle.cpp
@@ -24,7 +24,7 @@
 #include "nsID.h"
 #include "nsFileSpec.h"
 #include "nsString.h"
-#include "nsIPersistentProperties.h"
+#include "nsIPersistentProperties2.h"
 #include "nsIStringBundle.h"
 #include "nscore.h"
 #include "nsILocale.h"
diff --git a/intl/unicharutil/src/nsEntityConverter.h b/intl/unicharutil/src/nsEntityConverter.h
index 5200ade7438b..7efb95c53cd4 100644
--- a/intl/unicharutil/src/nsEntityConverter.h
+++ b/intl/unicharutil/src/nsEntityConverter.h
@@ -22,7 +22,7 @@
 
 #include "nsIEntityConverter.h"
 #include "nsIFactory.h"
-#include "nsIPersistentProperties.h"
+#include "nsIPersistentProperties2.h"
 
 
 nsresult NS_NewEntityConverter(nsISupports** oResult);
diff --git a/intl/unicharutil/tests/UnicharSelfTest.cpp b/intl/unicharutil/tests/UnicharSelfTest.cpp
index bcd634837042..31d4918cd062 100644
--- a/intl/unicharutil/tests/UnicharSelfTest.cpp
+++ b/intl/unicharutil/tests/UnicharSelfTest.cpp
@@ -29,7 +29,7 @@
 #include "nsISaveAsCharset.h"
 #include "nsIUnicodeEncoder.h"
 #include "nsUnicharUtilCIID.h"
-#include "nsIPersistentProperties.h"
+#include "nsIPersistentProperties2.h"
 #include "nsIURL.h"
 #include "nsNetUtil.h"
 #include "nsCOMPtr.h"
diff --git a/profile/Acct/nsAccount.cpp b/profile/Acct/nsAccount.cpp
index bf9a6756e88c..77c816749fb7 100644
--- a/profile/Acct/nsAccount.cpp
+++ b/profile/Acct/nsAccount.cpp
@@ -45,7 +45,7 @@
 //#include "nsEscape.h"
 
 #include "nsIEventQueueService.h"
-#include "nsIPersistentProperties.h"
+#include "nsIPersistentProperties2.h"
 #include "nsIServiceManager.h"
 #include "nsNetUtil.h"
 static NS_DEFINE_CID(kIOServiceCID, NS_IOSERVICE_CID);
diff --git a/xpinstall/src/nsInstall.h b/xpinstall/src/nsInstall.h
index 5aaf9dacc9a7..26df7a413197 100644
--- a/xpinstall/src/nsInstall.h
+++ b/xpinstall/src/nsInstall.h
@@ -54,7 +54,7 @@
 #include "nsIEventQueueService.h"
 #include "nsIServiceManager.h"
 #include "nsIComponentManager.h"
-#include "nsIPersistentProperties.h"
+#include "nsIPersistentProperties2.h"
 #include "nsIEnumerator.h"
 #include "nsIZipReader.h"