diff --git a/Makefile b/Makefile
index a1a93f7..3ecd33e 100644
--- a/Makefile
+++ b/Makefile
@@ -7,10 +7,6 @@ build:
 
 test: unit integration stdlibtest 
 
-rustfiles := $(find . -type f -name '*.rs')
-stdlibfiles := $(find std -type f -name '*.ucg')
-
-
 unit:
 	cargo test
 
diff --git a/std/strings.ucg b/std/strings.ucg
index 2aadf4c..97e31f3 100644
--- a/std/strings.ucg
+++ b/std/strings.ucg
@@ -31,9 +31,6 @@ let ops = module {
         out = [],
         str=mod.str,
     } => (result) {
-        let pkg = mod.pkg();
-        let this = mod.this;
-
         let recurse = module {
             buf = "",
             acc = [],