diff --git a/libraries/AP_HAL_Linux/ConsoleDevice.cpp b/libraries/AP_HAL_Linux/ConsoleDevice.cpp
index 0c52a6167da..b244b7f2501 100644
--- a/libraries/AP_HAL_Linux/ConsoleDevice.cpp
+++ b/libraries/AP_HAL_Linux/ConsoleDevice.cpp
@@ -42,7 +42,7 @@ bool ConsoleDevice::open()
 
 bool ConsoleDevice::_set_signal_handlers(void) const
 {
-    struct sigaction sa;
+    struct sigaction sa {};
     sigemptyset(&sa.sa_mask);
     sa.sa_handler = SIG_IGN;