diff --git a/rpm/org.monich.harbour.books.spec b/rpm/org.monich.harbour.books.spec
index 2aad8bd..39efe50 100644
--- a/rpm/org.monich.harbour.books.spec
+++ b/rpm/org.monich.harbour.books.spec
@@ -1,7 +1,7 @@
 Name:           org.monich.harbour.books
 Summary:        E-book reader
 Version:        1.1.5
-Release:        1
+Release:        2
 License:        BSD
 Group:          Applications/File
 URL:            https://github.com/sprainbrains/harbour-books/tree/auroraos
@@ -50,7 +50,8 @@ desktop-file-install --delete-original \
 for size in 86 108 128 172
 do
    mkdir -p %{buildroot}%{_datadir}/icons/hicolor/${size}x${size}/apps/
-   rsvg-convert --width=$size --height=$size --output \
+
+   rsvg-convert --width=${size} --height=${size} --output \
            %{buildroot}%{_datadir}/icons/hicolor/${size}x${size}/apps/%{name}.png \
           %{_sourcedir}/../app/icons/harbour-books.svg
 done