diff --git a/script/users/chong/MultiRegionScan.py b/script/users/chong/MultiRegionScan.py
index c72e043b..ae88b9aa 100644
--- a/script/users/chong/MultiRegionScan.py
+++ b/script/users/chong/MultiRegionScan.py
@@ -210,6 +210,7 @@ class SpectrumReader(ReadonlyRegisterBase, ReadonlyRegisterArray):
         try:
             ExitSlit.write(self.region['slit'])
             append_dataset(self.slit_dataset_name, self.region['slit'])
+            time.sleep(0.5)
             ExitSlitY.waitReady(10000)
         except KeyError:
             pass