diff --git a/modules/gui/firefox.nix b/modules/gui/firefox.nix
index 491b0a6..a98a2c1 100644
--- a/modules/gui/firefox.nix
+++ b/modules/gui/firefox.nix
@@ -8,7 +8,7 @@
     cfg = config.myOptions.programs.firefox;
     inherit (config.myOptions.other.system) username;
 
-    inherit (lib) mkEnableOption mkIf mkOption;
+    inherit (lib) getExe mkEnableOption mkIf mkOption;
     inherit (lib.types) attrsOf listOf str submodule;
     inherit (lib.attrsets) mapAttrs mapAttrsToList;
 
@@ -82,7 +82,7 @@ in {
                 firefox-schizo = {
                     name = "Schizofox";
                     genericName = "Web Browser";
-                    exec = "firefox-devedition --name firefox-schizo -P schizo %U";
+                    exec = "${getExe pkgs.firefox-devedition} --name firefox-schizo -P schizo %U";
                     icon = "${logo}";
                     terminal = false;
                     categories = [ "Network" "WebBrowser" ];
@@ -96,7 +96,7 @@ in {
                 firefox-unschizo = {
                     name = "Sanefox";
                     genericName = "Web Browser";
-                    exec = "firefox-devedition --name firefox-sane -P unschizo %U";
+                    exec = "${getExe pkgs.firefox-devedition} --name firefox-sane -P unschizo %U";
                     icon = "${logo}";
                     terminal = false;
                     categories = [ "Network" "WebBrowser" ];