diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index aa210bb0db..41ed80b3a0 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2017-04-12  Simon Marchi  <simon.marchi@ericsson.com>
+
+	* aix-thread.c (pd_status2str): Change return type to const char *.
+
 2017-04-12  Pedro Alves  <palves@redhat.com>
 
 	* i386-tdep.c (i386_elf_init_abi, i386_go32_init_abi): Remove
diff --git a/gdb/aix-thread.c b/gdb/aix-thread.c
index 05024dfcc7..ced6203593 100644
--- a/gdb/aix-thread.c
+++ b/gdb/aix-thread.c
@@ -155,7 +155,7 @@ static pthdb_session_t pd_session;
 /* Return a printable representation of pthdebug function return
    STATUS.  */
 
-static char *
+static const char *
 pd_status2str (int status)
 {
   switch (status)