diff --git a/libraries/lvtk/README b/libraries/lvtk/README
index 2ed61b53b3..368ad037d8 100644
--- a/libraries/lvtk/README
+++ b/libraries/lvtk/README
@@ -4,9 +4,9 @@ LV2 Toolkit is a set C++ wrappers around the LV2 C API.  The included
 libraries ease writing LV2 plugins and UIs in C++ by inheriting from
 easy to use template classes.
 
-If you want to build the API documentation, install graphviz, then export
-DOCS=yes before running lvtk.SlackBuild. This is only useful if you plan
-to develop your own code that uses lvtk. The docs take up 4MB of space
-in /usr/doc/lvtk-$VERSION/html/ (which makes the package 5x the size it
-would be without the docs). Also, the example plugins will be installed
-in /usr/lib(64)?/lv2/ltvk.lv2/, for another 500KB or so.
+If you want to build the API documentation, install graphviz, then
+export DOCS=yes before running lvtk.SlackBuild. This is only useful if
+you plan to develop your own code that uses lvtk. The docs take up 4MB
+of space in /usr/doc/lvtk-$VERSION/html/ (which makes the package 5x
+the size it would be without the docs). Also, the example plugins will
+be installed in /usr/lib(64)?/lv2/ltvk.lv2/, for another 500KB or so.
diff --git a/libraries/lvtk/lvtk.SlackBuild b/libraries/lvtk/lvtk.SlackBuild
index 68d8f88814..9ecbbb7b03 100644
--- a/libraries/lvtk/lvtk.SlackBuild
+++ b/libraries/lvtk/lvtk.SlackBuild
@@ -28,9 +28,6 @@ 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
@@ -63,11 +60,8 @@ 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 {} \+
 
 CFLAGS="$SLKCFLAGS" \
 CXXFLAGS="$SLKCFLAGS -std=c++11" \