diff --git a/software/common/demos/interrupt_demo.c b/software/common/demos/interrupt_demo.c
index 699d836b369d317de4b7a3f78dd85e31a07a7cdc..d4123019e39d221633acc381aaa9a888c485b41d 100644
--- a/software/common/demos/interrupt_demo.c
+++ b/software/common/demos/interrupt_demo.c
@@ -209,7 +209,7 @@ void UartExample(void)
   NVIC_DisableIRQ(EXP1_IRQn); // NVIC_DisableIRQ(UARTTX0_IRQn);   -disable both UART0 TX and UART1 RX IRQs
   NVIC_DisableIRQ(EXP2_IRQn); // NVIC_DisableIRQ(UARTRX1_IRQn);
 
- -return;
+  return;
 }
 
 // ----------------------------------------------------------