diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index e9e8eff3b3..51e8073ecc 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2016-08-01  Yao Qi  <yao.qi@linaro.org>
+
+	* gdb.threads/process-dies-while-detaching.exp (do_test): Set
+	variable mode to "multi-process" if $multi_process is 1, otherwise
+	set it to "single-process".
+
 2016-08-01  Yao Qi  <yao.qi@linaro.org>
 
 	* gdb.cp/anon-struct.exp: Check is_aarch32_target.
diff --git a/gdb/testsuite/gdb.threads/process-dies-while-detaching.exp b/gdb/testsuite/gdb.threads/process-dies-while-detaching.exp
index 8dc1aec3ac..52dc8dd433 100644
--- a/gdb/testsuite/gdb.threads/process-dies-while-detaching.exp
+++ b/gdb/testsuite/gdb.threads/process-dies-while-detaching.exp
@@ -318,7 +318,7 @@ proc do_test {multi_process cmd} {
 }
 
 foreach multi_process {0 1} {
-    set mode [expr {$multi_process ? "single-process" : "multi-process"}]
+    set mode [expr {$multi_process ? "multi-process" : "single-process"}]
     foreach cmd {"detach" "continue"} {
 	with_test_prefix "$mode: $cmd" {
 	    do_test $multi_process $cmd