diff --git a/src/main.rs b/src/main.rs
index 64dc9ac..9003ce8 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -17,7 +17,7 @@ fn main() {
     let wing_airfoil: SeligFile = SeligFile::parse(include_str!("../ag24.dat"));
 
     // symmetric airfoil, used in the control surfaces
-    let control_airfoil: SeligFile = SeligFile::parse(include_str!("../edgevertical.dat"));
+    let control_airfoil: SeligFile = SeligFile::parse(include_str!("../m1-il.dat"));
 
     // main wing
     let mut wing_transform = mirrored_wing(&wing_airfoil, &WING);