diff --git a/Makefile.SunOS b/Makefile.SunOS
index 5cfcacf4035..e802173f96a 100644
--- a/Makefile.SunOS
+++ b/Makefile.SunOS
@@ -12,7 +12,7 @@ MakeSharedObjectOption := -G
 
 # PLATFORMLINKOPTS - On sun we need to link to libmalloc.so to get a definition
 # of mallinfo.
-ExportSymbols := -lmalloc
+PLATFORMLINKOPTS := -lmalloc
 
 # Path to location for LLVM front-end for this architecture.  This setting may
 # be overriden by the Makefile.config option, and should not override it if set.