diff --git a/include/neuron/type.h b/include/neuron/type.h
index d5a4e304..536da061 100644
--- a/include/neuron/type.h
+++ b/include/neuron/type.h
@@ -348,10 +348,14 @@ static inline uint64_t neu_htonll(uint64_t u)
     uint64_t ret       = 0;
     uint8_t *ret_bytes = (uint8_t *) &ret;
 
-    ret_bytes[0] = bytes[3];
-    ret_bytes[1] = bytes[2];
-    ret_bytes[2] = bytes[1];
-    ret_bytes[3] = bytes[0];
+    ret_bytes[0] = bytes[7];
+    ret_bytes[1] = bytes[6];
+    ret_bytes[2] = bytes[5];
+    ret_bytes[3] = bytes[4];
+    ret_bytes[4] = bytes[3];
+    ret_bytes[5] = bytes[2];
+    ret_bytes[6] = bytes[1];
+    ret_bytes[7] = bytes[0];
 
     return ret;
 }
diff --git a/src/adapter/driver/driver.c b/src/adapter/driver/driver.c
index 1eda14d9..fd2d797e 100644
--- a/src/adapter/driver/driver.c
+++ b/src/adapter/driver/driver.c
@@ -118,6 +118,7 @@ static void update(neu_adapter_t *adapter, const char *name, neu_dvalue_t value)
     case NEU_TYPE_BYTES:
         break;
     default:
+        assert(value.type == NEU_TYPE_INT8);
         break;
     }