set output string pointer to NULL after freeing it

1 files changed, 1 insertions, 0 deletions

diff --git a/globals.c b/globals.c
index 79b84d3..098b85c 100644
--- a/globals.c
+++ b/globals.c
@@ -14,6 +14,7 @@ GlobalStruct globals = {
 	.Registers.last_relay_driver_settings[2] = -1,
 
 	.Registers.gpib_input_buffer[0] = 0,
+	.Registers.pending_output_message = NULL,
 
 	.VxiLocks.locked_network_server = NO_SERVER_LOCKED
 };