diff --git a/pkgs/misc/lilypond/fonts.nix b/pkgs/misc/lilypond/fonts.nix
index f1c80ad761b2..b624498f0920 100644
--- a/pkgs/misc/lilypond/fonts.nix
+++ b/pkgs/misc/lilypond/fonts.nix
@@ -17,13 +17,17 @@ let
         local fontsdir="$out/share/lilypond/${lilypond.version}/fonts"
 
         install -m755 -d "$fontsdir/otf"
-        for font in {otf,supplementary-fonts}/**.{o,t}tf; do
-          install -Dt "$fontsdir/otf" -m755 "$font"
+
+        shopt -s globstar
+
+        for font in {otf,supplementary-fonts,supplementary-files}/**/*.{o,t}tf; do
+          echo $font
+          install -Dt "$fontsdir/otf" -m644 "$font"
         done
 
         install -m755 -d "$fontsdir/svg"
-        for font in svg/**.{svg,woff}; do
-          install -Dt "$fontsdir/svg" -m755 "$font"
+        for font in {svg,woff}/**.{svg,woff}; do
+          install -Dt "$fontsdir/svg" -m644 "$font"
         done
       '';