diff --git a/games/madbomber/README b/games/madbomber/README
index 19fd00ec8c..1d928c41da 100644
--- a/games/madbomber/README
+++ b/games/madbomber/README
@@ -1,3 +1,5 @@
+madbomber (clone of the 1981 Atari 2600 video game "Kaboom!")
+
 Mad Bomber is a clone of the excellent 1981 Atari 2600 video game
 "Kaboom!" by Larry Kaplan of Activision.
 
diff --git a/games/madbomber/doinst.sh b/games/madbomber/doinst.sh
index ff5dd6d547..ae6bd45285 100644
--- a/games/madbomber/doinst.sh
+++ b/games/madbomber/doinst.sh
@@ -2,3 +2,8 @@ if [ -x /usr/bin/update-desktop-database ]; then
     /usr/bin/update-desktop-database -q usr/share/applications
 fi
 
+if [ -e usr/share/icons/hicolor/icon-theme.cache ]; then
+  if [ -x /usr/bin/gtk-update-icon-cache ]; then
+    /usr/bin/gtk-update-icon-cache usr/share/icons/hicolor >/dev/null 2>&1
+  fi
+fi
diff --git a/games/madbomber/madbomber.SlackBuild b/games/madbomber/madbomber.SlackBuild
index 67a3f1d269..09bbfc84b5 100644
--- a/games/madbomber/madbomber.SlackBuild
+++ b/games/madbomber/madbomber.SlackBuild
@@ -7,11 +7,13 @@
 
 # Licensed under the WTFPL. See http://www.wtfpl.net/txt/copying/ for details.
 
+# 20211020 bkw: BUILD=3, new-style icons.
+
 cd $(dirname $0) ; CWD=$(pwd)
 
 PRGNAM=madbomber
 VERSION=${VERSION:-0.2.5}
-BUILD=${BUILD:-2}
+BUILD=${BUILD:-3}
 TAG=${TAG:-_SBo}
 PKGTYPE=${PKGTYPE:-tgz}
 
@@ -23,9 +25,6 @@ if [ -z "$ARCH" ]; then
   esac
 fi
 
-# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
-# the name of the created package would be, and then exit. This information
-# could be useful to other scripts.
 if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
   echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
   exit 0
@@ -58,11 +57,8 @@ rm -rf $PRGNAM-$VERSION
 tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
 cd $PRGNAM-$VERSION
 chown -R root:root .
-find -L . \
- \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
-  -o -perm 511 \) -exec chmod 755 {} \; -o \
- \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
- -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
+find -L .  -perm /111 -a \! -perm 755 -a -exec chmod 755 {} \+ -o \
+        \! -perm /111 -a \! -perm 644 -a -exec chmod 644 {} \+
 
 sed -i -e "s/-Wall/-Wall $SLKCFLAGS/" Makefile
 
@@ -79,6 +75,18 @@ cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
 mkdir -p $PKG/usr/share/applications
 cat $CWD/$PRGNAM.desktop > $PKG/usr/share/applications/$PRGNAM.desktop
 
+# upstream only provides a 40x40 icon, resize...
+for i in 16 32 48 64; do
+  px=$( basename $i | cut -d. -f1 )
+  size=${px}x${px}
+  dir=$PKG/usr/share/icons/hicolor/$size/apps
+  mkdir -p $dir
+  convert -resize $size data/images/icon.png $dir/$PRGNAM.png
+done
+
+mkdir -p $PKG/usr/share/pixmaps
+cat data/images/icon.png > $PKG/usr/share/pixmaps/$PRGNAM.png
+
 mkdir -p $PKG/usr/man/man6
 gzip -9c $CWD/$PRGNAM.6 > $PKG/usr/man/man6/$PRGNAM.6.gz
 
diff --git a/games/madbomber/madbomber.desktop b/games/madbomber/madbomber.desktop
index 1a1db94f71..0a5fd774b2 100644
--- a/games/madbomber/madbomber.desktop
+++ b/games/madbomber/madbomber.desktop
@@ -1,6 +1,6 @@
 [Desktop Entry]
 Name=Mad Bomber
-Exec=madbomber
+Exec=/usr/games/madbomber
 Type=Application
 Icon=madbomber
 GenericName=Mad Bomber Game