diff --git a/pkgs/development/tools/alloy/default.nix b/pkgs/development/tools/alloy/default.nix
index 0786c3cb6e56..312d10a60c62 100644
--- a/pkgs/development/tools/alloy/default.nix
+++ b/pkgs/development/tools/alloy/default.nix
@@ -37,7 +37,7 @@ let
 
       buildCommand = ''
         jar=$out/share/alloy/${pname}.jar
-        install -Dm644 ${src} $jar
+        install -Dm644 $src $jar
 
         mkdir -p $out/bin
         makeWrapper ${jre}/bin/java $out/bin/${pname} --add-flags \