diff --git a/bin/system_imports.py b/bin/system_imports.py
index 925aa4d..1cd16a0 100755
--- a/bin/system_imports.py
+++ b/bin/system_imports.py
@@ -9,7 +9,7 @@ import os
 from glob import glob
 import configuration
 import preplots
-from datastore import Datastore
+from datastore import Datastore, psycopg2
 
 exportables = [
 	"events_seq",
@@ -38,11 +38,14 @@ if __name__ == '__main__':
 				print("Survey does not define an export path for machine data")
 				continue
 
-			for table in exportables:
-				path = os.path.join(pathPrefix, table)
-				print(" ← ", path, " → ", table)
-				with open(path, "rb") as fd:
-					cursor.copy_from(fd, table);
+			try:
+				for table in exportables:
+					path = os.path.join(pathPrefix, table)
+					print(" ← ", path, " → ", table)
+					with open(path, "rb") as fd:
+						cursor.copy_from(fd, table);
+			except psycopg2.errors.UniqueViolation:
+				print("It looks like data for this survey may have already been imported (unique constraint violation)")
 
 			# If we don't commit the data does not actually get copied
 			db.conn.commit()