diff --git a/src/XDGData/CMakeLists.txt b/src/XDGData/CMakeLists.txt
index 1eadba79a9..3c68ad11c1 100644
--- a/src/XDGData/CMakeLists.txt
+++ b/src/XDGData/CMakeLists.txt
@@ -8,7 +8,7 @@ if(NOT DEFINED APPDATA_RELEASE_DATE)
             OUTPUT_STRIP_TRAILING_WHITESPACE)
     else()
         if(NOT (CMAKE_VERSION VERSION_LESS 3.8.0))
-            set(APPDATA_RELEASE_DATE ENV{SOURCE_DATE_EPOCH})
+            string(TIMESTAMP APPDATA_RELEASE_DATE "%Y-%m-%d")
         else()
             file(TIMESTAMP "${CMAKE_SOURCE_DIR}/CMakeLists.txt" APPDATA_RELEASE_DATE "%Y-%m-%d")
         endif()