diff --git a/src/modality-specific-files/near-infrared-spectroscopy.md b/src/modality-specific-files/near-infrared-spectroscopy.md
index edfb075480..8262110afa 100644
--- a/src/modality-specific-files/near-infrared-spectroscopy.md
+++ b/src/modality-specific-files/near-infrared-spectroscopy.md
@@ -14,7 +14,7 @@ have been formatted using this specification and can be used for practical guida
 {{ MACROS___make_filename_template(
    "raw",
    datatypes=["nirs"],
-   suffixes=["nirs", "events", "channels", "optodes", "coordsystem"])
+   suffixes=["nirs", "events", "channels", "optodes", "coordsystem", "physio", "stim"])
 }}
 
 Only the *Shared Near Infrared Spectroscopy Format* ([SNIRF](https://github.com/fNIRS/snirf))
diff --git a/src/schema/rules/files/raw/task.yaml b/src/schema/rules/files/raw/task.yaml
index 8f56f268ac..1767814eb9 100644
--- a/src/schema/rules/files/raw/task.yaml
+++ b/src/schema/rules/files/raw/task.yaml
@@ -29,7 +29,6 @@ timeseries:
     - beh
     - eeg
     - ieeg
-    - meg
     - nirs
   entities:
     subject: required
@@ -83,6 +82,14 @@ timeseries__func:
     $ref: rules.files.raw.task.timeseries__mri.entities
     ceagent: optional
 
+timeseries__meg:
+  $ref: rules.files.raw.task.timeseries
+  datatypes:
+    - meg
+  entities:
+    $ref: rules.files.raw.task.timeseries.entities
+    processing: optional
+
 timeseries__pet:
   $ref: rules.files.raw.task.timeseries
   datatypes: