diff --git a/gas/ChangeLog b/gas/ChangeLog
index 729217866f..22a948daf4 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,8 @@
+2016-10-06  Alan Modra  <amodra@gmail.com>
+
+	* config/rl78-parse.y: Don't use deprecated %name-prefix.
+	* config/rx-parse.y: Likewise.
+
 2016-09-29  Jiong Wang  <jiong.wang@arm.com>
 
 	PR target/20553
diff --git a/gas/config/rl78-parse.y b/gas/config/rl78-parse.y
index 72a65610a5..dc981688ef 100644
--- a/gas/config/rl78-parse.y
+++ b/gas/config/rl78-parse.y
@@ -139,7 +139,7 @@ reg_xbc (int reg)
 
 %}
 
-%name-prefix="rl78_"
+%name-prefix "rl78_"
 
 %union {
   int regno;
diff --git a/gas/config/rx-parse.y b/gas/config/rx-parse.y
index c0e321708e..72e03b753c 100644
--- a/gas/config/rx-parse.y
+++ b/gas/config/rx-parse.y
@@ -130,7 +130,7 @@ static int    sub_op2;
 
 %}
 
-%name-prefix="rx_"
+%name-prefix "rx_"
 
 %union {
   int regno;