diff --git a/typo3/sysext/em/classes/index.php b/typo3/sysext/em/classes/index.php
index fa0b10c..dde1e68 100644
--- a/typo3/sysext/em/classes/index.php
+++ b/typo3/sysext/em/classes/index.php
@@ -1659,7 +1659,7 @@ class SC_mod_tools_em_index extends t3lib_SCbase {
 			} elseif ($this->CMD['downloadFile'] && !in_array($extKey, $this->requiredExt)) {
 
 				// Link for downloading extension has been clicked - deliver content stream:
-				$dlFile = $this->CMD['downloadFile'];
+				$dlFile = urldecode($this->CMD['downloadFile']);
 				if (t3lib_div::isAllowedAbsPath($dlFile) && t3lib_div::isFirstPartOfStr($dlFile, PATH_site) && t3lib_div::isFirstPartOfStr($dlFile, $absPath) && @is_file($dlFile)) {
 					$mimeType = 'application/octet-stream';
 					Header('Content-Type: ' . $mimeType);