diff --git a/build-book-converter.jenkins b/build-book-converter.jenkins
index da9fc6a..ac266d1 100644
--- a/build-book-converter.jenkins
+++ b/build-book-converter.jenkins
@@ -53,9 +53,9 @@ IFS=\$'\\n'
 
 while true; do
         sleep 5s
-        if [ -z "\$(find /calibre/input -type f \\( -iname "*.mobi" -o -iname "*.epub" -o -iname "*.prc" \\) -print -quit)" ]; then
+        if [ ! -z "\$(find /calibre/input -type f \\( -iname "*.mobi" -o -iname "*.epub" -o -iname "*.prc" \\) -print -quit)" ]; then
                 for i in \$(find /calibre/input -type f \\( -iname "*.mobi" -o -iname "*.epub" -o -iname "*.prc" \\)); do
-                        /opt/calibre/ebook-convert "\${i}" "/calibre/output/\${i%.*}.azw3"
+                        /opt/calibre/ebook-convert "\${i}" "/calibre/output/\$(basename \${i%.*}.azw3)"
                         rm -f -v "\${i}"
                 done
         fi