diff --git a/textproc/Makefile b/textproc/Makefile
index 9ac841488043..dc0e961d0024 100644
--- a/textproc/Makefile
+++ b/textproc/Makefile
@@ -1437,6 +1437,7 @@
     SUBDIR += rubygem-albino
     SUBDIR += rubygem-amatch
     SUBDIR += rubygem-asciidoctor
+    SUBDIR += rubygem-asciidoctor-plantuml
     SUBDIR += rubygem-autoprefixer-rails
     SUBDIR += rubygem-babel-source
     SUBDIR += rubygem-babel-transpiler
diff --git a/textproc/rubygem-asciidoctor-plantuml/Makefile b/textproc/rubygem-asciidoctor-plantuml/Makefile
new file mode 100644
index 000000000000..a766e9e1c97a
--- /dev/null
+++ b/textproc/rubygem-asciidoctor-plantuml/Makefile
@@ -0,0 +1,20 @@
+# Created by: Po-Chuan Hsieh <sunpoet@FreeBSD.org>
+# $FreeBSD$
+
+PORTNAME=	asciidoctor-plantuml
+PORTVERSION=	0.0.8
+CATEGORIES=	textproc rubygems
+MASTER_SITES=	RG
+
+MAINTAINER=	sunpoet@FreeBSD.org
+COMMENT=	Asciidoctor PlantUML extension
+
+LICENSE=	MIT
+
+RUN_DEPENDS=	rubygem-asciidoctor>=1.5:textproc/rubygem-asciidoctor
+
+NO_ARCH=	yes
+USE_RUBY=	yes
+USES=		gem
+
+.include <bsd.port.mk>
diff --git a/textproc/rubygem-asciidoctor-plantuml/distinfo b/textproc/rubygem-asciidoctor-plantuml/distinfo
new file mode 100644
index 000000000000..2e6cce892350
--- /dev/null
+++ b/textproc/rubygem-asciidoctor-plantuml/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1490206283
+SHA256 (rubygem/asciidoctor-plantuml-0.0.8.gem) = ca62ea5c807a02b2392e5f1e489d650a8504c1b5d952f23edbfa5c441b150974
+SIZE (rubygem/asciidoctor-plantuml-0.0.8.gem) = 7680
diff --git a/textproc/rubygem-asciidoctor-plantuml/pkg-descr b/textproc/rubygem-asciidoctor-plantuml/pkg-descr
new file mode 100644
index 000000000000..30f17b3edf98
--- /dev/null
+++ b/textproc/rubygem-asciidoctor-plantuml/pkg-descr
@@ -0,0 +1,4 @@
+Asciidoctor PlantUml is an extension that enables you to add PlantUML diagrams
+to your AsciiDoc documents.
+
+WWW: https://github.com/hsanson/asciidoctor-plantuml