diff --git a/mozilla/xpcom/system/Makefile.in b/mozilla/xpcom/system/Makefile.in
index d93e2141616..b3886c73c4a 100644
--- a/mozilla/xpcom/system/Makefile.in
+++ b/mozilla/xpcom/system/Makefile.in
@@ -49,7 +49,10 @@ XPIDLSRCS = \
         nsIXULAppInfo.idl \
         nsIGConfService.idl \
         nsIGnomeVFSService.idl \
-        nsICrashReporter.idl \
         $(NULL)
 
+ifdef MOZ_CRASHREPORTER
+XPIDLSRCS += nsICrashReporter.idl
+endif
+
 include $(topsrcdir)/config/rules.mk