diff --git a/mozilla/xpcom/glue/standalone/Makefile.in b/mozilla/xpcom/glue/standalone/Makefile.in
index 79d491d8f26..54823cdca54 100644
--- a/mozilla/xpcom/glue/standalone/Makefile.in
+++ b/mozilla/xpcom/glue/standalone/Makefile.in
@@ -59,7 +59,7 @@ endif
 ifeq (WINNT,$(OS_ARCH))
 LINKSRC = nsGlueLinkingWin.cpp
 endif
-ifneq (,$(filter AIX DragonFly FreeBSD Linux NetBSD OpenBSD,$(OS_ARCH)))
+ifneq (,$(filter AIX DragonFly FreeBSD Linux NetBSD OpenBSD SunOS,$(OS_ARCH)))
 LINKSRC = nsGlueLinkingDlopen.cpp
 endif
 ifeq (OS2,$(OS_ARCH))