diff --git a/src/emucore/DefProps.hxx b/src/emucore/DefProps.hxx
index b959f4699..6b09a99a7 100644
--- a/src/emucore/DefProps.hxx
+++ b/src/emucore/DefProps.hxx
@@ -27,7 +27,7 @@
 
 static constexpr uInt32 DEF_PROPS_SIZE = 3507;
 
-static constexpr BSPF::array2D<const char*, DEF_PROPS_SIZE, 21> DefProps = {{
+static const BSPF::array2D<const char*, DEF_PROPS_SIZE, 21> DefProps = {{
   { "000509d1ed2b8d30a9d94be1b3b5febb", "Greg Zumwalt", "", "Jungle Jane (2003) (Greg Zumwalt) (Hack)", "Hack of Pitfall!", "Hack", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
   { "0060a89b4c956b9c703a59b181cb3018", "CommaVid, Irwin Gaines - Ariola", "CM-008 - 712 008-720", "Cakewalk (1983) (CommaVid) (PAL)", "AKA Alarm in der Backstube", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
   { "007d18dedc1f0565f09c42aa61a6f585", "CCE", "C-843", "Worm War I (1983) (CCE)", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },