diff --git a/ChangeLog b/ChangeLog
index d777e05b9..a100e704a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -7,6 +7,7 @@
             nRF52: If we reboot because of LOCKUP, don't enable DCDC converter
             Bangle.js2: Test screen now fails if no DCDC enabled
             Bangle.js: Ensure fake LED1/LED2 remember state
+            Ensure E.setComparator is added to the build for nRF52
 
      2v25 : ESP32C3: Get analogRead working correctly
             Graphics: Adjust image alignment when rotating images to avoid cropping (fix #2535)
diff --git a/src/jswrap_espruino.c b/src/jswrap_espruino.c
index 62c46bb83..f9031a057 100644
--- a/src/jswrap_espruino.c
+++ b/src/jswrap_espruino.c
@@ -689,7 +689,7 @@ void jswrap_espruino_kickWatchdog() {
 
 /*JSON{
   "type" : "event",
-  "#if" : "defined(NRF52) && !defined(SAVE_ON_FLASH)",
+  "#if" : "defined(NRF52_SERIES) && !defined(SAVE_ON_FLASH)",
   "class" : "E",
   "name" : "comparator",
   "params" : [
@@ -700,7 +700,7 @@ Called when a bit rises or falls above a set level. See `E.setComparator` for se
 */
 /*JSON{
   "type" : "EV_CUSTOM",
-  "#if" : "defined(NRF52) && !defined(SAVE_ON_FLASH)",
+  "#if" : "defined(NRF52_SERIES) && !defined(SAVE_ON_FLASH)",
   "generate" : "jswrap_espruino_setComparator_eventHandler"
 }
 */
@@ -716,7 +716,7 @@ void jswrap_espruino_setComparator_eventHandler(IOEvent *event) {
 }
 /*JSON{
   "type" : "staticmethod",
-  "#if" : "defined(NRF52) && !defined(SAVE_ON_FLASH)",
+  "#if" : "defined(NRF52_SERIES) && !defined(SAVE_ON_FLASH)",
   "class" : "E",
   "name" : "setComparator",
   "generate" : "jswrap_espruino_setComparator",