diff --git a/lib_standalone/Arduino.cpp b/lib_standalone/Arduino.cpp
index b06b8bf25..d8ed7f47a 100644
--- a/lib_standalone/Arduino.cpp
+++ b/lib_standalone/Arduino.cpp
@@ -41,7 +41,7 @@ int main(int argc __attribute__((unused)), char * argv[] __attribute__((unused))
     memset(__output_level, 0, sizeof(__output_level));
 
     setup();
-    // loop(); // run once
+    loop(); // run once
 
     static unsigned long __cycles = 0;