diff --git a/tools/esp8266/app.cpp b/tools/esp8266/app.cpp
index 2addd94c..63670a14 100644
--- a/tools/esp8266/app.cpp
+++ b/tools/esp8266/app.cpp
@@ -433,7 +433,7 @@ void app::showLiveData(void) {
             char topic[30], val[10];
             for(uint8_t i = 0; i < iv->listLen; i++) {
                 snprintf(topic, 30, "%s/ch%d/%s", iv->name, iv->assign[i].ch, mSys->getFieldName(iv, i));
-                snprintf(val, 12, "%.3f %s", mSys->getValue(iv, i), mSys->getUnit(iv, i));
+                snprintf(val, 10, "%.3f %s", mSys->getValue(iv, i), mSys->getUnit(iv, i));
                 modHtml += String(topic) + ": " + String(val) + "\n";
             }
             modHtml += "</pre>";
diff --git a/tools/esp8266/hmInverters.h b/tools/esp8266/hmInverters.h
index 0b516410..0226a8cf 100644
--- a/tools/esp8266/hmInverters.h
+++ b/tools/esp8266/hmInverters.h
@@ -64,7 +64,7 @@ const byteAssign_t hm400assignment[] = {
     { FLD_IDC, UNIT_A,   CH1, CMD01,  5, 2, 100  },
     { FLD_PDC, UNIT_W,   CH1, CMD01,  7, 2, 10   },
     { FLD_YT,  UNIT_KWH, CH1, CMD01,  9, 4, 1000 },
-    { FLD_YD,  UNIT_WH,  CH1, CMD01, 13, 2, 1    },
+    { FLD_YD,  UNIT_WH,  CH1, CMD01, 13, 2, 1000 },
     { FLD_UAC, UNIT_V,   CH0, CMD01, 15, 2, 10   },
     { FLD_F,   UNIT_HZ,  CH0, CMD82,  1, 2, 100  },
     { FLD_PAC, UNIT_W,   CH0, CMD82,  3, 2, 10   },