diff --git a/mozilla/xpcom/ds/Makefile.in b/mozilla/xpcom/ds/Makefile.in
index 9b740d1e971..325a45294ae 100644
--- a/mozilla/xpcom/ds/Makefile.in
+++ b/mozilla/xpcom/ds/Makefile.in
@@ -101,6 +101,7 @@ EXPORTS		= \
 		nsXPIDLString.h \
 		plvector.h \
 		nsTextFormatter.h \
+		nsIPersistentProperties.h \
 		$(NULL)			
 
 XPIDLSRCS	= \