diff --git a/devel/Makefile b/devel/Makefile
index 135e6805844a..d717eedc34fa 100644
--- a/devel/Makefile
+++ b/devel/Makefile
@@ -5491,6 +5491,7 @@
     SUBDIR += rubygem-rack-raw-upload
     SUBDIR += rubygem-rails-deprecated_sanitizer
     SUBDIR += rubygem-rails-deprecated_sanitizer-rails5
+    SUBDIR += rubygem-rails-deprecated_sanitizer-rails50
     SUBDIR += rubygem-rails-i18n
     SUBDIR += rubygem-rails-observers
     SUBDIR += rubygem-rainbow
diff --git a/devel/rubygem-rails-deprecated_sanitizer-rails50/Makefile b/devel/rubygem-rails-deprecated_sanitizer-rails50/Makefile
new file mode 100644
index 000000000000..23f07ece0064
--- /dev/null
+++ b/devel/rubygem-rails-deprecated_sanitizer-rails50/Makefile
@@ -0,0 +1,21 @@
+# Created by: Johannes Meixner <xmj@FreeBSD.org>
+# $FreeBSD$
+
+PORTNAME=	rails-deprecated_sanitizer
+PORTVERSION=	1.0.3
+CATEGORIES=	devel rubygems
+MASTER_SITES=	RG
+PKGNAMESUFFIX=	-rails50
+
+MAINTAINER=	jrm@FreeBSD.org
+COMMENT=	Deprecated sanitizer API extracted from Action View
+
+LICENSE=	MIT
+
+RUN_DEPENDS=	rubygem-activesupport50>0:devel/rubygem-activesupport50
+
+NO_ARCH=	yes
+USE_RUBY=	yes
+USES=		gem
+
+.include <bsd.port.mk>
diff --git a/devel/rubygem-rails-deprecated_sanitizer-rails50/distinfo b/devel/rubygem-rails-deprecated_sanitizer-rails50/distinfo
new file mode 100644
index 000000000000..f79707c519f5
--- /dev/null
+++ b/devel/rubygem-rails-deprecated_sanitizer-rails50/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1493508481
+SHA256 (rubygem/rails-deprecated_sanitizer-1.0.3.gem) = 722d589fc83dea0ea49e816440bacc554383dc9a05c8aee5429cf7f621abbe63
+SIZE (rubygem/rails-deprecated_sanitizer-1.0.3.gem) = 25600
diff --git a/devel/rubygem-rails-deprecated_sanitizer-rails50/pkg-descr b/devel/rubygem-rails-deprecated_sanitizer-rails50/pkg-descr
new file mode 100644
index 000000000000..d87e0fc3f2a4
--- /dev/null
+++ b/devel/rubygem-rails-deprecated_sanitizer-rails50/pkg-descr
@@ -0,0 +1,5 @@
+In Rails 4.2 HTML sanitization has been rewritten using a more secure library.
+This gem includes the old behavior shipping with Rails 4.2 and before. It is
+strictly provided to ease migration. It will be supported until Rails 5.
+
+WWW: https://github.com/rails/rails-deprecated_sanitizer