diff --git a/converters/p5-Sereal-Encoder/Makefile b/converters/p5-Sereal-Encoder/Makefile
new file mode 100644
index 00000000000..06798c8d5f5
--- /dev/null
+++ b/converters/p5-Sereal-Encoder/Makefile
@@ -0,0 +1,36 @@
+# $OpenBSD: Makefile,v 1.1.1.1 2018/04/04 21:54:06 fcambus Exp $
+
+COMMENT =	fast, compact, powerful binary serialization
+
+DISTNAME =	Sereal-Encoder-4.005
+
+CATEGORIES =	converters
+
+MAINTAINER =	Frederic Cambus <fcambus@openbsd.org>
+
+# Perl, BSD, LGPLv2.1
+PERMIT_PACKAGE_CDROM =	Yes
+
+WANTLIB =	c perl zstd
+
+MODULES =	cpan
+
+BUILD_DEPENDS =	devel/p5-Devel-CheckLib
+
+LIB_DEPENDS =	archivers/zstd
+
+TEST_DEPENDS =	converters/p5-Sereal-Decoder>=4.002 \
+		devel/p5-Test-Deep \
+		devel/p5-Test-Differences \
+		devel/p5-Test-LongString \
+		devel/p5-Test-Warn
+
+CPAN_AUTHOR =	YVES
+
+post-extract:
+	rm -r -- ${WRKSRC}/inc/Devel ${WRKSRC}/zstd
+
+pre-configure:
+	${SUBST_CMD} ${WRKSRC}/Makefile.PL
+
+.include <bsd.port.mk>
diff --git a/converters/p5-Sereal-Encoder/distinfo b/converters/p5-Sereal-Encoder/distinfo
new file mode 100644
index 00000000000..220c0f82f4e
--- /dev/null
+++ b/converters/p5-Sereal-Encoder/distinfo
@@ -0,0 +1,2 @@
+SHA256 (Sereal-Encoder-4.005.tar.gz) = KVCzKNafJixvuiNQ+GBHROVAFuz93D2Wt9cdzFuZCwo=
+SIZE (Sereal-Encoder-4.005.tar.gz) = 501265
diff --git a/converters/p5-Sereal-Encoder/patches/patch-Makefile_PL b/converters/p5-Sereal-Encoder/patches/patch-Makefile_PL
new file mode 100644
index 00000000000..419ca09da5b
--- /dev/null
+++ b/converters/p5-Sereal-Encoder/patches/patch-Makefile_PL
@@ -0,0 +1,17 @@
+$OpenBSD: patch-Makefile_PL,v 1.1.1.1 2018/04/04 21:54:06 fcambus Exp $
+
+Index: Makefile.PL
+--- Makefile.PL.orig
++++ Makefile.PL
+@@ -91,9 +91,9 @@ inc::Sereal::BuildTools::WriteMakefile(
+     LICENSE => 'perl',
+     ABSTRACT_FROM => 'lib/Sereal/Encoder.pm',
+     AUTHOR => 'Steffen Mueller <smueller@cpan.org>, Yves Orton <yves@cpan.org>',
+-    LIBS              => [$libs], # e.g., '-lm'
++    LIBS              => ["-L${LOCALBASE}/lib $libs"], # e.g., '-lm'
+     DEFINE            => $defines,
+-    INC               => '-I.', # e.g., '-I. -I/usr/include/other'
++    INC               => "-I. -I${LOCALBASE}/include", # e.g., '-I. -I/usr/include/other'
+     OPTIMIZE          => $optimize,
+     DIR               => $subdirs,
+     OBJECT            => $objects,
diff --git a/converters/p5-Sereal-Encoder/pkg/DESCR b/converters/p5-Sereal-Encoder/pkg/DESCR
new file mode 100644
index 00000000000..ef47f7d38e9
--- /dev/null
+++ b/converters/p5-Sereal-Encoder/pkg/DESCR
@@ -0,0 +1,4 @@
+This library implements an efficient, compact-output, and feature-rich
+serializer using a binary protocol called Sereal.
+
+Its sister module p5-Sereal-Decoder implements a decoder for this format.
diff --git a/converters/p5-Sereal-Encoder/pkg/PLIST b/converters/p5-Sereal-Encoder/pkg/PLIST
new file mode 100644
index 00000000000..42b5d0d6e39
--- /dev/null
+++ b/converters/p5-Sereal-Encoder/pkg/PLIST
@@ -0,0 +1,11 @@
+@comment $OpenBSD: PLIST,v 1.1.1.1 2018/04/04 21:54:06 fcambus Exp $
+${P5ARCH}/
+${P5ARCH}/Sereal/
+${P5ARCH}/Sereal/Encoder/
+${P5ARCH}/Sereal/Encoder.pm
+${P5ARCH}/Sereal/Encoder/Constants.pm
+${P5ARCH}/auto/
+${P5ARCH}/auto/Sereal/
+${P5ARCH}/auto/Sereal/Encoder/
+${P5ARCH}/auto/Sereal/Encoder/Encoder.so
+@man man/man3p/Sereal::Encoder.3p