diff --git a/bin/kaleidoscope-builder b/bin/kaleidoscope-builder
index 4e586f95..7dd905c1 100755
--- a/bin/kaleidoscope-builder
+++ b/bin/kaleidoscope-builder
@@ -541,8 +541,8 @@ find_all_sketches () {
 build_all () {
     plugins="$(find_all_sketches)"
 
-    for plugin in ${plugins}; do
-        export SKETCH="${plugin}"
+    for sketch in ${plugins}; do
+        export SKETCH="${sketch}"
         $0 "${plugin}" build
     done
 }
diff --git a/tests/simulator/timing/sketch.ino b/tests/simulator/timing/timing.ino
similarity index 100%
rename from tests/simulator/timing/sketch.ino
rename to tests/simulator/timing/timing.ino