diff --git a/ETT/ETT-Version_1.0.2_20150904.ckan b/ETT/ETT-1.0.2_20150904.ckan
similarity index 96%
rename from ETT/ETT-Version_1.0.2_20150904.ckan
rename to ETT/ETT-1.0.2_20150904.ckan
index fbddc78718..d6e304224c 100644
--- a/ETT/ETT-Version_1.0.2_20150904.ckan
+++ b/ETT/ETT-1.0.2_20150904.ckan
@@ -10,7 +10,7 @@
         "kerbalstuff": "https://kerbalstuff.com/mod/901/Engineering%20Tech%20Tree",
         "x_screenshot": "https://kerbalstuff.com/content/Probus_200/Engineering_Tech_Tree/Engineering_Tech_Tree-1433986841.3047912.jpg"
     },
-    "version": "Version_1.0.2_20150904",
+    "version": "1.0.2_20150904",
     "ksp_version": "1.0.4",
     "depends": [
         {
diff --git a/ETT/ETT-1.0.20150622.ckan b/ETT/ETT-1.0_20150622.ckan
similarity index 97%
rename from ETT/ETT-1.0.20150622.ckan
rename to ETT/ETT-1.0_20150622.ckan
index 18d0bb3d6c..85b9659309 100644
--- a/ETT/ETT-1.0.20150622.ckan
+++ b/ETT/ETT-1.0_20150622.ckan
@@ -31,7 +31,7 @@
     "ksp_version": "1.0.4",
     "name": "Engineering Tech Tree",
     "abstract": "A tech tree based on engineering/scientific principles that is challenging to unlock yet fun to play through.",
-    "version": "1.0.20150622",
+    "version": "1.0_20150622",
     "author": "Probus",
     "download": "https://kerbalstuff.com/mod/901/Engineering%20Tech%20Tree/download/1.0.20150622",
     "license": "CC-BY-4.0",