diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8546a16..2a79400 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -101,7 +101,8 @@ endfunction()
 if(PANDOC)
     message(STATUS "Looking for pandoc - found")
     message(STATUS "  Manual pages will be built")
-    execute_process(COMMAND date "+%Y-%m-%d" OUTPUT_VARIABLE PUBDATE OUTPUT_STRIP_TRAILING_WHITESPACE)
+    execute_process(COMMAND dpkg-parsechangelog -SDate OUTPUT_VARIABLE DEBDATE OUTPUT_STRIP_TRAILING_WHITESPACE)
+    execute_process(COMMAND env LC_ALL=C date --utc --date ${DEBDATE} "+%Y-%m-%d" OUTPUT_VARIABLE PUBDATE OUTPUT_STRIP_TRAILING_WHITESPACE)
         set(PANDOC_MAN_OPTIONS
         -s
         -t man