diff --git a/mozilla/xpcom/base/IIDS.h b/mozilla/xpcom/base/IIDS.h
index 9b4695a21eb..bb38d2230a0 100644
--- a/mozilla/xpcom/base/IIDS.h
+++ b/mozilla/xpcom/base/IIDS.h
@@ -923,13 +923,13 @@ nsContentSubtreeIterator_CID = { /* a6cf90e5-15b3-11d2-932e-00805f8add32 */
     0x11d2,
     {0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32}
   };
-INTERFACENAME = { /* a6cf90e6-15b3-11d2-932e-00805f8add32 */
+nsIFileInputStream = { /* a6cf90e6-15b3-11d2-932e-00805f8add32 */
     0xa6cf90e6,
     0x15b3,
     0x11d2,
     {0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32}
   };
-INTERFACENAME = { /* a6cf90e7-15b3-11d2-932e-00805f8add32 */
+nsIFileOutputStream = { /* a6cf90e7-15b3-11d2-932e-00805f8add32 */
     0xa6cf90e7,
     0x15b3,
     0x11d2,
diff --git a/mozilla/xpcom/src/IIDS.h b/mozilla/xpcom/src/IIDS.h
index 9b4695a21eb..bb38d2230a0 100644
--- a/mozilla/xpcom/src/IIDS.h
+++ b/mozilla/xpcom/src/IIDS.h
@@ -923,13 +923,13 @@ nsContentSubtreeIterator_CID = { /* a6cf90e5-15b3-11d2-932e-00805f8add32 */
     0x11d2,
     {0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32}
   };
-INTERFACENAME = { /* a6cf90e6-15b3-11d2-932e-00805f8add32 */
+nsIFileInputStream = { /* a6cf90e6-15b3-11d2-932e-00805f8add32 */
     0xa6cf90e6,
     0x15b3,
     0x11d2,
     {0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32}
   };
-INTERFACENAME = { /* a6cf90e7-15b3-11d2-932e-00805f8add32 */
+nsIFileOutputStream = { /* a6cf90e7-15b3-11d2-932e-00805f8add32 */
     0xa6cf90e7,
     0x15b3,
     0x11d2,