diff --git a/injectors/linux.js b/injectors/linux.js
index d3086a4cc..af18de8e2 100644
--- a/injectors/linux.js
+++ b/injectors/linux.js
@@ -18,7 +18,9 @@ const KnownLinuxPaths = Object.freeze([
   '/usr/lib64/discord-canary',
   '/opt/discord-canary',
   '/opt/DiscordCanary',
-  `${homedir}/.local/bin/DiscordCanary` // https://github.com/powercord-org/powercord/pull/370
+  `${homedir}/.local/bin/DiscordCanary`, // https://github.com/powercord-org/powercord/pull/370
+  '/var/lib/flatpak/app/com.discordapp.DiscordCanary/current/active/files/discord-canary', // flatpak system install https://github.com/flathub/com.discordapp.DiscordCanary
+  `${homedir}/.local/share/flatpak/app/com.discordapp.DiscordCanary/current/active/files/discord-canary` // flatpak user install
 ]);
 
 
diff --git a/injectors/main.js b/injectors/main.js
index 342a3c3d6..c63273d55 100644
--- a/injectors/main.js
+++ b/injectors/main.js
@@ -21,6 +21,12 @@ exports.inject = async ({ getAppDir }) => {
     console.log(`${AnsiEscapes.YELLOW}NOTE:${AnsiEscapes.RESET} If you already have BetterDiscord or another client mod injected, Powercord cannot run along with it!`);
     console.log('Read our FAQ for more details: https://powercord.dev/faq#bd-and-pc');
     return false;
+  } else if (appDir.includes('flatpak')) {
+    const command = appDir.startsWith('/var') ? 'sudo flatpak override' : 'flatpak override --user';
+
+    console.log(`${AnsiEscapes.YELLOW}NOTE:${AnsiEscapes.RESET} It seems like your Discord Canary install is a flatpak`);
+    console.log('      You need to update its permissions so it can access the powercord directory');
+    console.log(`      You can do so by running ${AnsiEscapes.YELLOW}${command} --filesystem=${join(__dirname, '..')} com.discordapp.DiscordCanary${AnsiEscapes.RESET}`);
   }
 
   await mkdir(appDir);