diff --git a/etc/prepfiles/CMO202061_cmd.min b/etc/prepfiles/CMO202061_prep.min
similarity index 100%
rename from etc/prepfiles/CMO202061_cmd.min
rename to etc/prepfiles/CMO202061_prep.min
diff --git a/etc/prepfiles/CMO202061_cmd.raw b/etc/prepfiles/CMO202061_prep.raw
similarity index 100%
rename from etc/prepfiles/CMO202061_cmd.raw
rename to etc/prepfiles/CMO202061_prep.raw
diff --git a/test/prepfiles_test.py b/test/prepfiles_test.py
index 3a3d48cd288b52c3da1baaf6b6f622be42e47a15..58a6520be98cccfd4caa4de117a5b7436ce417c0 100644
--- a/test/prepfiles_test.py
+++ b/test/prepfiles_test.py
@@ -13,7 +13,7 @@ def test_prepfiles_raw():
     f_data = pcdcp.data["F"]
     times = pcdcp.times
 
-    pcdcp.parse(open("etc/prepfiles/CMO202061_cmd.raw").read())
+    pcdcp.parse(open("etc/prepfiles/CMO202061_prep.raw").read())
     result_h_data = pcdcp.data["H"]
     result_e_data = pcdcp.data["E"]
     result_z_data = pcdcp.data["Z"]
@@ -36,7 +36,7 @@ def test_prepfiles_min():
     f_data = pcdcp.data["F"]
     times = pcdcp.times
 
-    pcdcp.parse(open("etc/prepfiles/CMO202061_cmd.min").read())
+    pcdcp.parse(open("etc/prepfiles/CMO202061_prep.min").read())
     result_h_data = pcdcp.data["H"]
     result_e_data = pcdcp.data["E"]
     result_z_data = pcdcp.data["Z"]