diff --git a/desktop/base.nix b/desktop/base.nix
index 9613ba3..81d52f1 100644
--- a/desktop/base.nix
+++ b/desktop/base.nix
@@ -9,6 +9,28 @@
 	services.dbus.packages = [ pkgs.kdePackages.kwallet ];
 	xdg.menus.enable = true;
 	xdg.mime.enable = true;
+	xdg.mime.addedAssociations = {
+		"image/avif" = [ "org.kde.gwenview.desktop" ];
+		"image/gif" = [ "org.kde.gwenview.desktop" ];
+		"image/heif" = [ "org.kde.gwenview.desktop" ];
+		"image/jpeg" = [ "org.kde.gwenview.desktop" ];
+		"image/jxl" = [ "org.kde.gwenview.desktop" ];
+		"image/png" = [ "org.kde.gwenview.desktop" ];
+		"image/svg+xml" = [ "org.kde.gwenview.desktop" ];
+		"image/tiff" = [ "org.kde.gwenview.desktop" ];
+		"image/webp" = [ "org.kde.gwenview.desktop" ];
+	};
+	xdg.mime.defaultApplications = {
+		"image/avif" = [ "org.kde.gwenview.desktop" ];
+		"image/gif" = [ "org.kde.gwenview.desktop" ];
+		"image/heif" = [ "org.kde.gwenview.desktop" ];
+		"image/jpeg" = [ "org.kde.gwenview.desktop" ];
+		"image/jxl" = [ "org.kde.gwenview.desktop" ];
+		"image/png" = [ "org.kde.gwenview.desktop" ];
+		"image/svg+xml" = [ "org.kde.gwenview.desktop" ];
+		"image/tiff" = [ "org.kde.gwenview.desktop" ];
+		"image/webp" = [ "org.kde.gwenview.desktop" ];
+	};
 	xdg.portal.enable = true;
 	xdg.portal.extraPortals = [ pkgs.kdePackages.kwallet ];