diff --git a/Source/tasks.c b/Source/tasks.c
index 3cd2e9c02..6a78a5c0e 100644
--- a/Source/tasks.c
+++ b/Source/tasks.c
@@ -1744,7 +1744,7 @@ portBASE_TYPE xReturn;
 			passed since vTaskSetTimeout() was called. */
 			xReturn = pdTRUE;
 		}
-		else if( ( ( portTickType ) xTickCount - ( portTickType ) pxTimeOut->xTimeOnEntering ) < ( portTickType ) *pxTicksToWait )
+		else if( ( ( portTickType ) ( ( portTickType ) xTickCount - ( portTickType ) pxTimeOut->xTimeOnEntering ) ) < ( portTickType ) *pxTicksToWait )
 		{
 			/* Not a genuine timeout. Adjust parameters for time remaining. */
 			*pxTicksToWait -= ( ( portTickType ) xTickCount - ( portTickType ) pxTimeOut->xTimeOnEntering );