diff --git a/devel/toml11/Portfile b/devel/toml11/Portfile
index 8b7e06f9e9851..62c1b42257ac5 100644
--- a/devel/toml11/Portfile
+++ b/devel/toml11/Portfile
@@ -36,3 +36,5 @@ maintainers         {gmail.com:herby.gillot @herbygillot} \
 checksums           rmd160  f7d057dee906dac2c459c3fd7501fcd1d603200a \
                     sha256  9287971cd4a1a3992ef37e7b95a3972d1ae56410e7f8e3f300727ab1d6c79c2c \
                     size    345359
+
+compiler.cxx_standard   2011