diff --git a/pkgs/development/python-modules/python-calamine/default.nix b/pkgs/development/python-modules/python-calamine/default.nix
index 86b49cb39921..ba4eb23badbd 100644
--- a/pkgs/development/python-modules/python-calamine/default.nix
+++ b/pkgs/development/python-modules/python-calamine/default.nix
@@ -4,6 +4,9 @@
   fetchFromGitHub,
   rustPlatform,
 
+  # buildInputs
+  libiconv,
+
   # build-system
   cargo,
   poetry-core,
@@ -39,6 +42,8 @@ buildPythonPackage rec {
     ln -s ${./Cargo.lock} Cargo.lock
   '';
 
+  buildInputs = [ libiconv ];
+
   build-system = [
     cargo
     poetry-core