diff --git a/scripts/cmake/packaging/Pack.cmake b/scripts/cmake/packaging/Pack.cmake
index 3b4cff42914f739eaa64c99810f8488e2ab2b131..cbed03c0b3853b0904caae5eb2e42fe01b128fe8 100644
--- a/scripts/cmake/packaging/Pack.cmake
+++ b/scripts/cmake/packaging/Pack.cmake
@@ -34,8 +34,8 @@ ENDIF()
 IF(OGS_DOWNLOAD_ADDITIONAL_CONTENT)
 	DownloadAdditionalFilesForPackaging(
 		URLS http://docs.opengeosys.org/assets/releases/head/docs/DataExplorer-Manual.pdf
-		     http://docs.opengeosys.org/assets/releases/head/docs/User_Manual.pdf
-		     http://docs.opengeosys.org/assets/releases/head/docs/Theory_Manual.pdf
+		     http://docs.opengeosys.org/assets/releases/head/docs/User-Manual.pdf
+		     http://docs.opengeosys.org/assets/releases/head/docs/Theory-Manual.pdf
 		DESTINATION docs
 		PACKAGE_GROUP ogs_docs
 	)