diff --git a/xpcom/libxpt/xptcall/src/md/unix/xptcstubs_sparc_solaris.cpp b/xpcom/libxpt/xptcall/src/md/unix/xptcstubs_sparc_solaris.cpp
index c4a0c378340..0d5946bd768 100644
--- a/xpcom/libxpt/xptcall/src/md/unix/xptcstubs_sparc_solaris.cpp
+++ b/xpcom/libxpt/xptcall/src/md/unix/xptcstubs_sparc_solaris.cpp
@@ -22,7 +22,7 @@
 
 #ifdef sparc
 
-static nsresult
+extern "C" nsresult
 PrepareAndDispatch(nsXPTCStubBase* self, uint32 methodIndex, uint32* args)
 {
 #define PARAM_BUFFER_COUNT     16
diff --git a/xpcom/reflect/xptcall/src/md/unix/xptcstubs_sparc_solaris.cpp b/xpcom/reflect/xptcall/src/md/unix/xptcstubs_sparc_solaris.cpp
index c4a0c378340..0d5946bd768 100644
--- a/xpcom/reflect/xptcall/src/md/unix/xptcstubs_sparc_solaris.cpp
+++ b/xpcom/reflect/xptcall/src/md/unix/xptcstubs_sparc_solaris.cpp
@@ -22,7 +22,7 @@
 
 #ifdef sparc
 
-static nsresult
+extern "C" nsresult
 PrepareAndDispatch(nsXPTCStubBase* self, uint32 methodIndex, uint32* args)
 {
 #define PARAM_BUFFER_COUNT     16