diff --git a/bids-validator/validators/json/schemas/eeg.json b/bids-validator/validators/json/schemas/eeg.json
index 2a0cdaf74..14ed03748 100644
--- a/bids-validator/validators/json/schemas/eeg.json
+++ b/bids-validator/validators/json/schemas/eeg.json
@@ -74,7 +74,9 @@
     "EpochLength": {
       "$ref": "common_definitions.json#/definitions/EpochLength"
     },
-    "SubjectArtefactDescription": { "type": "string" }
+    "SubjectArtefactDescription": { "type": "string" },
+    "ElectricalStimulation": { "type": "boolean" },
+    "ElectricalStimulationParameters": { "type": "string" }
   },
   "required": [
     "TaskName",
diff --git a/bids-validator/validators/json/schemas/meg.json b/bids-validator/validators/json/schemas/meg.json
index 11bc5bbe4..b2da2d3fa 100644
--- a/bids-validator/validators/json/schemas/meg.json
+++ b/bids-validator/validators/json/schemas/meg.json
@@ -102,7 +102,9 @@
     "MaxMovement": { "type": "number" },
     "SubjectArtefactDescription": { "type": "string" },
     "DigitizedLandmarks": { "type": "boolean" },
-    "DigitizedHeadPoints": { "type": "boolean" }
+    "DigitizedHeadPoints": { "type": "boolean" },
+    "ElectricalStimulation": { "type": "boolean" },
+    "ElectricalStimulationParameters": { "type": "string" }
   },
   "required": [
     "TaskName",