1 files changed, 1 insertions, 1 deletions

diff --git a/src/keyboard.c b/src/keyboard.c
index 8128eaca2d9..48627162ff5 100644
--- a/src/keyboard.c
+++ b/src/keyboard.c
@@ -3299,7 +3299,7 @@ kbd_buffer_store_event (event)
 
       if (c == quit_char)
         {
-          static SIGTYPE interrupt_signal (int);
+          static SIGTYPE interrupt_signal P_ ((int));
 #ifdef MULTI_KBOARD
           KBOARD *kb;
           struct input_event *sp;