diff --git a/content/macbuild/contentIDL.xml b/content/macbuild/contentIDL.xml
index 0d8e32f0b8c3..628322f8d15f 100644
--- a/content/macbuild/contentIDL.xml
+++ b/content/macbuild/contentIDL.xml
@@ -904,6 +904,13 @@
                     <FILEKIND>Text</FILEKIND>
                     <FILEFLAGS></FILEFLAGS>
                 </FILE>
+                <FILE>
+                    <PATHTYPE>Name</PATHTYPE>
+                    <PATH>nsISyncLoadDOMService.idl</PATH>
+                    <PATHFORMAT>MacOS</PATHFORMAT>
+                    <FILEKIND>Text</FILEKIND>
+                    <FILEFLAGS></FILEFLAGS>
+                </FILE>
             </FILELIST>
             <LINKORDER>
                 <FILEREF>
@@ -1016,6 +1023,11 @@
                     <PATH>nsITransformObserver.idl</PATH>
                     <PATHFORMAT>MacOS</PATHFORMAT>
                 </FILEREF>
+                <FILEREF>
+                    <PATHTYPE>Name</PATHTYPE>
+                    <PATH>nsISyncLoadDOMService.idl</PATH>
+                    <PATHFORMAT>MacOS</PATHFORMAT>
+                </FILEREF>
             </LINKORDER>
         </TARGET>
         <TARGET>
@@ -1869,6 +1881,13 @@
                     <FILEKIND>Text</FILEKIND>
                     <FILEFLAGS></FILEFLAGS>
                 </FILE>
+                <FILE>
+                    <PATHTYPE>Name</PATHTYPE>
+                    <PATH>nsISyncLoadDOMService.idl</PATH>
+                    <PATHFORMAT>MacOS</PATHFORMAT>
+                    <FILEKIND>Text</FILEKIND>
+                    <FILEFLAGS></FILEFLAGS>
+                </FILE>
             </FILELIST>
             <LINKORDER>
                 <FILEREF>
@@ -1981,6 +2000,11 @@
                     <PATH>nsITransformObserver.idl</PATH>
                     <PATHFORMAT>MacOS</PATHFORMAT>
                 </FILEREF>
+                <FILEREF>
+                    <PATHTYPE>Name</PATHTYPE>
+                    <PATH>nsISyncLoadDOMService.idl</PATH>
+                    <PATHFORMAT>MacOS</PATHFORMAT>
+                </FILEREF>
             </LINKORDER>
         </TARGET>
     </TARGETLIST>
@@ -2123,6 +2147,12 @@
             <PATH>nsITransformObserver.idl</PATH>
             <PATHFORMAT>MacOS</PATHFORMAT>
         </FILEREF>
+        <FILEREF>
+            <TARGETNAME>headers</TARGETNAME>
+            <PATHTYPE>Name</PATHTYPE>
+            <PATH>nsISyncLoadDOMService.idl</PATH>
+            <PATHFORMAT>MacOS</PATHFORMAT>
+        </FILEREF>
     </GROUPLIST>
 
 </PROJECT>