diff --git a/scripts/innosetup.iss.in b/scripts/innosetup.iss.in
index 7c845a4b..c17043f4 100644
--- a/scripts/innosetup.iss.in
+++ b/scripts/innosetup.iss.in
@@ -61,6 +61,9 @@ Source: "sfizz.vst3\Contents\@VST3_PACKAGE_ARCHITECTURE@-win\sfizz.vst3"; Compon
 Source: "sfizz.vst3\Contents\Resources\*"; Components: vst3; DestDir: "{commoncf}\VST3\sfizz.vst3\Contents\Resources"
 Source: "sfizz.vst3\Plugin.ico"; Components: vst3; DestDir: "{commoncf}\VST3\sfizz.vst3"
 Source: "sfizz.vst3\gpl-3.0.txt"; Components: main; DestDir: "{app}"
+; Note(sfizz): OS older than Windows 10 require UI fonts to be installed system-wide
+Source: "sfizz.vst3\Contents\Resources\Fonts\sfizz-fluentui-system-r20.ttf"; DestDir: "{autofonts}"; FontInstall: "Sfizz Fluent System R20"; Flags: uninsneveruninstall; OnlyBelowVersion: 6.4
+Source: "sfizz.vst3\Contents\Resources\Fonts\Roboto-Regular.ttf"; DestDir: "{autofonts}"; FontInstall: "Roboto Regular"; Flags: uninsneveruninstall; OnlyBelowVersion: 6.4
 ;Source: "setup\vc_redist.x64.exe"; DestDir: {tmp}; Flags: deleteafterinstall
 ; NOTE: Don't use "Flags: ignoreversion" on any shared system files