diff --git a/libuavcan_drivers/lpc11c24/test_olimex_lpc_p11c24/src/sys/crt0.c b/libuavcan_drivers/lpc11c24/test_olimex_lpc_p11c24/src/sys/crt0.c
index 7a05f3f1af..361e2f18b9 100644
--- a/libuavcan_drivers/lpc11c24/test_olimex_lpc_p11c24/src/sys/crt0.c
+++ b/libuavcan_drivers/lpc11c24/test_olimex_lpc_p11c24/src/sys/crt0.c
@@ -28,6 +28,8 @@ extern int main(void);
 
 extern void SystemInit(void);
 
+#pragma GCC optimize 1
+
 /**
  * Firmware entry point
  */