diff --git a/contributed_definitions/nyaml/SPM/NXspm.yaml b/contributed_definitions/nyaml/SPM/NXspm.yaml
index b397e29f6..4d056f203 100644
--- a/contributed_definitions/nyaml/SPM/NXspm.yaml
+++ b/contributed_definitions/nyaml/SPM/NXspm.yaml
@@ -109,7 +109,7 @@ NXspm(NXsensor_scan):
           exists: optional
           doc: |
             The name of the scan, mainly lab defined, that helps to differentiate among different
-            scans performed in lab.
+            scans performed in the lab.
         current_sensor(NXsensor):
           exists: optional
           doc: |