diff --git a/ld/ChangeLog b/ld/ChangeLog
index 6ee54fc3c86..826ea7c8325 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,7 @@
+2016-07-05  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* testsuite/ld-plugin/lto.exp: Add -flto to PR ld/20321 test.
+
 2016-07-05  Andre Vieria  <andre.simoesdiasvieira@arm.com>
 
 	* testsuite/ld-arm/farcall-thumb2-purecode.d: New test result.
diff --git a/ld/testsuite/ld-plugin/lto.exp b/ld/testsuite/ld-plugin/lto.exp
index 2ecb4d021c4..4ed163ea466 100644
--- a/ld/testsuite/ld-plugin/lto.exp
+++ b/ld/testsuite/ld-plugin/lto.exp
@@ -199,7 +199,7 @@ set lto_link_tests [list \
    "$plug_opt" "-flto $lto_no_fat" \
    {pr20267b.c} {} "libpr20267b.a"] \
   [list "Build pr20321" \
-   "-Wl,-plugin,$plug_so" "-flto" \
+   "-flto -Wl,-plugin,$plug_so" "-flto" \
    {pr20321.c} {} "pr20321" "c" ".*: duplicated plugin"] \
 ]