diff --git a/CMakeLists.txt b/CMakeLists.txt
index e1ee808..b8d351c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -375,7 +375,7 @@ else ()
 endif ()
 if (STEAM)
 	set(CPACK_INCLUDE_TOPLEVEL_DIRECTORY OFF)
-	set(CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_FILENAME}-steambuild")
+	set(CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_FILE_NAME}-steambuild")
 endif ()
 
 if(UNIX)