diff --git a/pkgs/build-support/build-fhsenv-bubblewrap/default.nix b/pkgs/build-support/build-fhsenv-bubblewrap/default.nix
index e69e990d3f29..fa43fe9fcf96 100644
--- a/pkgs/build-support/build-fhsenv-bubblewrap/default.nix
+++ b/pkgs/build-support/build-fhsenv-bubblewrap/default.nix
@@ -167,7 +167,7 @@ let
     run:
     writeShellScript "${name}-init" ''
       source /etc/profile
-      exec ${run} "$@"
+      ${run} "$@"
     '';
 
   indentLines = str: concatLines (map (s: "  " + s) (filter (s: s != "") (splitString "\n" str)));