diff --git a/graphics/nomacs/nomacs.SlackBuild b/graphics/nomacs/nomacs.SlackBuild
index b1ca8917b6..e4ef4ee3a0 100644
--- a/graphics/nomacs/nomacs.SlackBuild
+++ b/graphics/nomacs/nomacs.SlackBuild
@@ -2,7 +2,7 @@
 
 # Slackware build script for nomacs
 
-# Copyright 2013-2016 Matteo Bernardini <ponce@slackbuilds.org>, Pisa, Italy
+# Copyright 2013-2018 Matteo Bernardini <ponce@slackbuilds.org>, Pisa, Italy
 # All rights reserved.
 #
 # Redistribution and use of this script, with or without modification, is
@@ -23,8 +23,8 @@
 #  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 PRGNAM=nomacs
-VERSION=${VERSION:-3.4}
-PVERSION=${PVERSION:-20161219_7c06c4c}
+VERSION=${VERSION:-3.8.0}
+PVERSION=${PVERSION:-20180109_8e482c4}
 BUILD=${BUILD:-1}
 TAG=${TAG:-_SBo}
 
@@ -63,7 +63,7 @@ rm -rf $PKG
 mkdir -p $TMP $PKG $OUTPUT
 cd $TMP
 rm -rf $PRGNAM-$VERSION
-tar xvf $CWD/$PRGNAM-$VERSION.tar.gz || tar xvf $CWD/$VERSION.tar.gz
+tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
 cd $PRGNAM-$VERSION/ImageLounge
 tar xvf $CWD/$PRGNAM-plugins-$PVERSION.tar.xz
 mv $PRGNAM-plugins-$PVERSION plugins
@@ -88,7 +88,7 @@ cd build
     -DCMAKE_INSTALL_PREFIX=/usr \
     -DLIB_SUFFIX=${LIBDIRSUFFIX} \
     -DENABLE_PAINT=0 \
-    -DENABLE_THRESHOLD=0 \
+    -DENABLE_THRESHOLD=1 \
     -DENABLE_TRANSFORM=0 \
     -DCMAKE_BUILD_TYPE=Release ..
   make
diff --git a/graphics/nomacs/nomacs.info b/graphics/nomacs/nomacs.info
index abb1f6759f..b082409797 100644
--- a/graphics/nomacs/nomacs.info
+++ b/graphics/nomacs/nomacs.info
@@ -1,12 +1,12 @@
 PRGNAM="nomacs"
-VERSION="3.4"
+VERSION="3.8.0"
 HOMEPAGE="http://www.nomacs.org"
-DOWNLOAD="https://github.com/nomacs/nomacs/archive/3.4.tar.gz \
-          http://ponce.cc/slackware/sources/repo/nomacs-plugins-20161219_7c06c4c.tar.xz"
-MD5SUM="5f1a6586f51cebd01cb2ab71b38de649 \
-        4e613f7bf1aea7abe7677af2192246bd"
+DOWNLOAD="https://github.com/nomacs/nomacs/archive/3.8.0/nomacs-3.8.0.tar.gz \
+          http://ponce.cc/slackware/sources/repo/nomacs-plugins-20180109_8e482c4.tar.xz"
+MD5SUM="90d935191d803623a967359161d6170b \
+        e08f7468626769162c7583d26c8c35f7"
 DOWNLOAD_x86_64=""
 MD5SUM_x86_64=""
-REQUIRES="opencv qt5"
+REQUIRES="lcov opencv qt5"
 MAINTAINER="Matteo Bernardini"
 EMAIL="ponce@slackbuilds.org"