diff --git a/x11/glxinfo/Portfile b/x11/glxinfo/Portfile
index 4740bfc23b8..1f73054b767 100644
--- a/x11/glxinfo/Portfile
+++ b/x11/glxinfo/Portfile
@@ -31,6 +31,9 @@ depends_lib         port:mesa \
 
 variant universal   {}
 
+compiler.c_standard     2011
+compiler.cxx_standard   2017
+
 configure.args      -Dvulkan=disabled
 
 build.target        src/xdemos/glxinfo