diff --git a/measure_extinction/merge_obsspec.py b/measure_extinction/merge_obsspec.py
index e3c4b48..bd20c9b 100644
--- a/measure_extinction/merge_obsspec.py
+++ b/measure_extinction/merge_obsspec.py
@@ -8,7 +8,7 @@
     "merge_spex_obsspec",
     "merge_nircam_ss_obsspec",
     "merge_irs_obsspec",
-    "merge_miri_lrs_obspec",
+    "merge_miri_lrs_obsspec",
     "merge_miri_ifu_obsspec",
 ]