diff --git a/src/patterns/data/default/exposure_to_medical_action.tsv b/src/patterns/data/default/exposure_to_medical_action.tsv
index da4e9d0..b76f48e 100644
--- a/src/patterns/data/default/exposure_to_medical_action.tsv
+++ b/src/patterns/data/default/exposure_to_medical_action.tsv
@@ -35,7 +35,7 @@ ECTO:2000034	exposure to antileukotriene agents	MAXO:0000315
 ECTO:2000035	exposure to glycemic agents	MAXO:0000258
 ECTO:2000036	exposure to antigout agent	MAXO:0000164
 ECTO:2000037	exposure to diagnostic imaging	NCIT:C16502
-ECTO:2000038	exposure to ultrasound tomography 	NCIT:C116448
+ECTO:2000038	exposure to ultrasound tomography	NCIT:C116448
 ECTO:2000039	exposure to positron emission tomography 	NCIT:C17007
 ECTO:2000040	exposure to radiography 	NCIT:C38101
 ECTO:2000041	exposure to mammography 	NCIT:C16818