diff --git a/cmdline/mingwapp.c b/cmdline/mingwapp.c
index 20d8d6fd..ad7594f0 100644
--- a/cmdline/mingwapp.c
+++ b/cmdline/mingwapp.c
@@ -20,7 +20,7 @@ int exit_sync_needed = 2;
 /****************************************************************************/
 /* signal */
 
-volatile int global_interrupt = 0;
+volatile sig_atomic_t global_interrupt = 0;
 
 int os_signal_interrupt(void)
 {
diff --git a/cmdline/unixapp.c b/cmdline/unixapp.c
index fb8d37dd..1b2f356e 100644
--- a/cmdline/unixapp.c
+++ b/cmdline/unixapp.c
@@ -21,7 +21,7 @@ int exit_sync_needed = 2;
 /****************************************************************************/
 /* signal */
 
-volatile int global_interrupt = 0;
+volatile sig_atomic_t global_interrupt = 0;
 
 int os_signal_interrupt(void)
 {