diff --git a/mozilla/modules/libjar/nsJARChannel.h b/mozilla/modules/libjar/nsJARChannel.h
index ecc6b105d57..3c03b0622ae 100644
--- a/mozilla/modules/libjar/nsJARChannel.h
+++ b/mozilla/modules/libjar/nsJARChannel.h
@@ -35,6 +35,7 @@
 #include "nsIInterfaceRequestor.h"
 #include "nsCOMPtr.h"
 #include "nsIFile.h"
+#include "prmon.h"
 
 class nsIFileChannel;
 
diff --git a/mozilla/netwerk/protocol/jar/src/nsJARChannel.h b/mozilla/netwerk/protocol/jar/src/nsJARChannel.h
index ecc6b105d57..3c03b0622ae 100644
--- a/mozilla/netwerk/protocol/jar/src/nsJARChannel.h
+++ b/mozilla/netwerk/protocol/jar/src/nsJARChannel.h
@@ -35,6 +35,7 @@
 #include "nsIInterfaceRequestor.h"
 #include "nsCOMPtr.h"
 #include "nsIFile.h"
+#include "prmon.h"
 
 class nsIFileChannel;