diff --git a/cave_data/-2025-DG-02.html b/cave_data/1623-2025-DG-02.html
similarity index 100%
rename from cave_data/-2025-DG-02.html
rename to cave_data/1623-2025-DG-02.html
diff --git a/cave_data/1623-2025-EM-00.html b/cave_data/1623-2025-EM-00.html
index f36663e67..7a4eeab1b 100644
--- a/cave_data/1623-2025-EM-00.html
+++ b/cave_data/1623-2025-EM-00.html
@@ -25,7 +25,7 @@ the form documented at
 <unofficial_number>2025-EM-00</unofficial_number>
 
 <entrance>
-  <entranceslug>1623-2025-EM-00A</entranceslug>
+  <entranceslug>1623-2025-EM-00a</entranceslug>
   <letter>A</letter>
 </entrance>
 
diff --git a/cave_data/1623-2025-HK-00.html b/cave_data/1623-2025-HK-00.html
index 6e1874c02..37d35d1b7 100644
--- a/cave_data/1623-2025-HK-00.html
+++ b/cave_data/1623-2025-HK-00.html
@@ -30,7 +30,7 @@ the form documented at
 </entrance>
 
 <explorers>Hannah Collings, Hamish Wier, Harry Kettle, Lara Bartleet, Hannah Urquart-Greeves</explorers>
-<survex_file>hahahahohle.svx</survex_file>
+<survex_file>caves-1623/2025-HK-00/2025-HK-00.svx</survex_file>
 <underground_description><h1>Entrance Series</h1>
 
 A pitch descends onto a loose floor with a snowplug. It is rebelayed through a hole in the far wall and drops down to another snowplug and a rebelay to a rock floor. The middle section has an inlet in the roof and becomes wet in rain. 
diff --git a/entrance_data/1623-2025-EM-00A.html b/entrance_data/1623-2025-EM-00a.html
similarity index 96%
rename from entrance_data/1623-2025-EM-00A.html
rename to entrance_data/1623-2025-EM-00a.html
index 88f786612..bce3375c3 100644
--- a/entrance_data/1623-2025-EM-00A.html
+++ b/entrance_data/1623-2025-EM-00a.html
@@ -19,8 +19,8 @@ though, you do not need to do a data import as it happens automatically -->
 <br>
 <entrance>
 <non_public>False</non_public>
-<slug>1623-2025-EM-00A</slug> <!-- one entrance and one slug per entrance_data file -->
-<name>2025-EM-00A</name>
+<slug>1623-2025-EM-00a</slug> <!-- one entrance and one slug per entrance_data file -->
+<name>2025-EM-00a</name>
 <entrance_description></entrance_description>
 <explorers></explorers>
 <location_description></location_description>