diff --git a/src/config/settings.h b/src/config/settings.h
index f15e81fa..6663ce3f 100644
--- a/src/config/settings.h
+++ b/src/config/settings.h
@@ -287,7 +287,7 @@ typedef struct {
     float battVoltageOn;
     float battVoltageOff;
     // Advanced
-    uint16_t setPoint;
+    int16_t setPoint;
     uint8_t refresh;
     uint8_t powerTolerance;
     uint16_t powerMax;
@@ -1062,7 +1062,7 @@ class settings {
                     getVal<float>(obj, F("battVoltageOff"), &mCfg.plugin.zeroExport.groups[group].battVoltageOff);
                 // Advanced
                 if (obj.containsKey(F("setPoint")))
-                    getVal<uint16_t>(obj, F("setPoint"), &mCfg.plugin.zeroExport.groups[group].setPoint);
+                    getVal<int16_t>(obj, F("setPoint"), &mCfg.plugin.zeroExport.groups[group].setPoint);
                 if (obj.containsKey(F("refresh")))
                     getVal<uint8_t>(obj, F("refresh"), &mCfg.plugin.zeroExport.groups[group].refresh);
                 if (obj.containsKey(F("powerTolerance")))
diff --git a/src/web/RestApi.h b/src/web/RestApi.h
index 17552b9a..5eeb785e 100644
--- a/src/web/RestApi.h
+++ b/src/web/RestApi.h
@@ -845,7 +845,7 @@ class RestApi {
                 objGroup[F("battVoltageOn")]  = ah::round1((float)mConfig->plugin.zeroExport.groups[group].battVoltageOn);
                 objGroup[F("battVoltageOff")]  = ah::round1((float)mConfig->plugin.zeroExport.groups[group].battVoltageOff);
                 // Advanced
-                objGroup[F("setPoint")]  = (uint16_t)mConfig->plugin.zeroExport.groups[group].setPoint;
+                objGroup[F("setPoint")]  = (int16_t)mConfig->plugin.zeroExport.groups[group].setPoint;
                 objGroup[F("refresh")]  = (uint8_t)mConfig->plugin.zeroExport.groups[group].refresh;
                 objGroup[F("powerTolerance")]  = (uint8_t)mConfig->plugin.zeroExport.groups[group].powerTolerance;
                 objGroup[F("powerMax")]  = (uint16_t)mConfig->plugin.zeroExport.groups[group].powerMax;
diff --git a/src/web/html/setup.html b/src/web/html/setup.html
index bae845ea..062d20cb 100644
--- a/src/web/html/setup.html
+++ b/src/web/html/setup.html
@@ -1414,7 +1414,7 @@
                     ]),
                     // Advanced
                     ml("div", {id: "div{#ZE_GROUP_TAB_ADVANCED}", class: "tab-content hide"}, [
-                        divRow("{#ZE_GROUP_TAB_ADVANCED_SETPOINT}", ml("input", {name: "setPoint", class: "text", type: "number", min: "0", max: "65535", value: obj.setPoint}, null)),
+                        divRow("{#ZE_GROUP_TAB_ADVANCED_SETPOINT}", ml("input", {name: "setPoint", class: "text", type: "number", min: "-32768", max: "32767", step: "1", value: obj.setPoint}, null)),
                         divRow("{#ZE_GROUP_TAB_ADVANCED_REFRESH}", ml("input", {name: "refresh", class: "text", type: "number", min: "0", max: "255", value: obj.refresh}, null)),
                         divRow("{#ZE_GROUP_TAB_ADVANCED_POWERTOLERANCE}", ml("input", {name: "powerTolerance", class: "text", type: "number", min: "0", max: "255", value: obj.powerTolerance}, null)),
                         divRow("{#ZE_GROUP_TAB_ADVANCED_POWERMAX}", ml("input", {name: "powerMax", class: "text", type: "number", min: "0", max: "65535", value: obj.powerMax}, null)),