diff --git a/editor/txmgr/moz.build b/editor/txmgr/moz.build
index 3c7f3b55a8..4cae5437a7 100644
--- a/editor/txmgr/moz.build
+++ b/editor/txmgr/moz.build
@@ -19,7 +19,7 @@ EXPORTS += [
     'nsTransactionManagerCID.h',
 ]
 
-UNIFIED_SOURCES += [
+SOURCES += [
     'nsTransactionItem.cpp',
     'nsTransactionList.cpp',
     'nsTransactionManager.cpp',
diff --git a/editor/txtsvc/moz.build b/editor/txtsvc/moz.build
index 4c0b93419f..bf9f22382a 100644
--- a/editor/txtsvc/moz.build
+++ b/editor/txtsvc/moz.build
@@ -18,7 +18,7 @@ EXPORTS += [
     'nsTextServicesCID.h',
 ]
 
-UNIFIED_SOURCES += [
+SOURCES += [
     'nsFilteredContentIterator.cpp',
     'nsTextServicesDocument.cpp',
 ]