diff --git a/install.php b/install.php
index 838168c1..d6c8236a 100755
--- a/install.php
+++ b/install.php
@@ -14,6 +14,4 @@
 }
 
 // copy data directory
-rex_dir::copy($this->getPath('data'), $this->getDataPath());
-// copy all theme css files to assets folder
-MFormThemeHelper::copyThemeCssToAssets();
\ No newline at end of file
+rex_dir::copy($this->getPath('data'), $this->getDataPath());
\ No newline at end of file
diff --git a/update.php b/update.php
index e7eae716..b5a24c5f 100644
--- a/update.php
+++ b/update.php
@@ -7,5 +7,3 @@
 
 // copy data directory
 rex_dir::copy($this->getPath('data'), $this->getDataPath());
-// copy all theme css files to assets folder
-MFormThemeHelper::copyThemeCssToAssets();