diff --git a/example/hid_host_demo.c b/example/hid_host_demo.c
index 245427b4b..6dd93609c 100644
--- a/example/hid_host_demo.c
+++ b/example/hid_host_demo.c
@@ -283,6 +283,7 @@ static void hid_host_handle_interrupt_report(const uint8_t * report, uint16_t re
             continue;
         }
         printf("%c", key);
+        fflush(stdout);
     }
     memcpy(last_keys, new_keys, NUM_KEYS);
 }
diff --git a/example/hog_host_demo.c b/example/hog_host_demo.c
index 7e26ba454..dd1efcf86 100644
--- a/example/hog_host_demo.c
+++ b/example/hog_host_demo.c
@@ -224,6 +224,7 @@ static void hid_handle_input_report(uint8_t service_index, const uint8_t * repor
             continue;
         }
         printf("%c", key);
+        fflush(stdout);
     }
     memcpy(last_keys, new_keys, NUM_KEYS);
 }