diff --git a/Nevanlinna/complexHarmonic.examples.lean b/Nevanlinna/complexHarmonic.examples.lean
index 26b8fc4..9db98eb 100644
--- a/Nevanlinna/complexHarmonic.examples.lean
+++ b/Nevanlinna/complexHarmonic.examples.lean
@@ -1,3 +1,4 @@
+import Mathlib.Analysis.SpecialFunctions.Complex.LogDeriv
 import Nevanlinna.complexHarmonic
 import Nevanlinna.holomorphic