diff --git a/compiler/gen/tests/gen_num.rs b/compiler/gen/tests/gen_num.rs
index ffe203c30e..be3a86d3ff 100644
--- a/compiler/gen/tests/gen_num.rs
+++ b/compiler/gen/tests/gen_num.rs
@@ -686,11 +686,19 @@ mod gen_num {
         assert_evals_to!("Num.powInt 2 3", 8, i64);
     }
 
+    // For some reason, libm's atan has slightly different results on macos vs non-macos
     #[test]
-    fn atan() {
+    #[cfg(target_os = "macos")]
+    fn atan_macos() {
         assert_evals_to!("Num.atan 10", 1.4711276743037345, f64);
     }
 
+    #[test]
+    #[cfg(not(target_os = "macos"))]
+    fn atan() {
+        assert_evals_to!("Num.atan 10", 1.4711276743037347, f64);
+    }
+
     // #[test]
     // #[should_panic(expected = r#"Roc failed with message: "integer addition overflowed!"#)]
     // fn int_overflow() {