1 files changed, 3 insertions, 3 deletions
diff --git a/examples/13.src b/examples/13.src
index 77f85d1..798d056 100644
--- a/examples/13.src
+++ b/examples/13.src
@@ -1,4 +1,4 @@
-extern printf = (*i64, varargs) => i64;
+import "!stdlib.src";
 
 let main = () => i64 {
     /* Iterative Fibonacci using while loop. */
@@ -24,10 +24,10 @@ let main = () => i64 {
     };
 
     let fib_val = fibonacci_iter(10);
-    printf("%d\n", fib_val);
+    println("%d", fib_val);
 
     let gcd_val = gcd(48, 18);
-    printf("%d\n", gcd_val);
+    println("%d", gcd_val);
 
     return 0;
 };