diff --git a/pkgs/development/tools/ammonite/default.nix b/pkgs/development/tools/ammonite/default.nix
index 69e81596574b..eba5a2b67149 100644
--- a/pkgs/development/tools/ammonite/default.nix
+++ b/pkgs/development/tools/ammonite/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
   phases = "installPhase";
 
   installPhase = ''
-    install -Dm755 ${src} $out/bin/amm
+    install -Dm755 $src $out/bin/amm
     sed -i '0,/java/{s|java|${jre}/bin/java|}' $out/bin/amm
   '' + optionalString (disableRemoteLogging) ''
     sed -i '0,/ammonite.Main/{s|ammonite.Main|ammonite.Main --no-remote-logging|}' $out/bin/amm