diff --git a/tasks.c b/tasks.c
index 94b3e1f..62ab95a 100644
--- a/tasks.c
+++ b/tasks.c
@@ -1949,6 +1949,11 @@
                     if( pxTCB->uxPriority >= pxCurrentTCB->uxPriority )
                     {
                         xYieldRequired = pdTRUE;
+
+                        /* Mark that a yield is pending in case the user is not
+                         * using the return value to initiate a context switch
+                         * from the ISR using portYIELD_FROM_ISR. */
+                        xYieldPending = pdTRUE;
                     }
                     else
                     {