diff --git a/ld/ChangeLog b/ld/ChangeLog
index bd732799cd..930a6cc3d4 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,9 @@
+2017-08-23  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* testsuite/ld-elf/pr21903c.d: Add '\' before --.
+	* testsuite/ld-elf/pr21903d.d: Likewise.
+	* testsuite/ld-elf/pr21903e.d: Likewise.
+
 2017-08-23  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* testsuite/ld-x86-64/pie2.d: Updated.
diff --git a/ld/testsuite/ld-elf/pr21903c.d b/ld/testsuite/ld-elf/pr21903c.d
index d3910ec79b..1668c084cb 100644
--- a/ld/testsuite/ld-elf/pr21903c.d
+++ b/ld/testsuite/ld-elf/pr21903c.d
@@ -1,3 +1,3 @@
 #source: pr21903.s
 #ld: --no-define-common
-#error: --no-define-common may not be used without -shared
+#error: \--no-define-common may not be used without -shared
diff --git a/ld/testsuite/ld-elf/pr21903d.d b/ld/testsuite/ld-elf/pr21903d.d
index ec729007d1..84d0e76e83 100644
--- a/ld/testsuite/ld-elf/pr21903d.d
+++ b/ld/testsuite/ld-elf/pr21903d.d
@@ -1,4 +1,4 @@
 #source: pr21903.s
 #ld: --no-define-common -pie
 #target: *-*-linux* *-*-gnu*
-#error: --no-define-common may not be used without -shared
+#error: \--no-define-common may not be used without -shared
diff --git a/ld/testsuite/ld-elf/pr21903e.d b/ld/testsuite/ld-elf/pr21903e.d
index 894c595c43..e673e4a7a9 100644
--- a/ld/testsuite/ld-elf/pr21903e.d
+++ b/ld/testsuite/ld-elf/pr21903e.d
@@ -1,3 +1,3 @@
 #source: pr21903.s
 #ld: -r --no-define-common
-#error: --no-define-common may not be used without -shared
+#error: \--no-define-common may not be used without -shared