diff --git a/pyo3-build-config/src/impl_.rs b/pyo3-build-config/src/impl_.rs
index ce39239c2f4..02b913c058d 100644
--- a/pyo3-build-config/src/impl_.rs
+++ b/pyo3-build-config/src/impl_.rs
@@ -239,8 +239,7 @@ print("mingw", get_platform().startswith("mingw"))
         let abi_tag = soabi
             .split('-')
             .nth(1)
-            .map(ToString::to_string)
-            .expect("unable to parse ABI tag from SOABI");
+            .map(ToString::to_string);
         let ext_suffix = map["ext_suffix"].to_string();
 
         let implementation = map["implementation"].parse()?;
@@ -282,7 +281,7 @@ print("mingw", get_platform().startswith("mingw"))
             shared,
             abi3,
             abi_flags: Some(abi_flags),
-            abi_tag: Some(abi_tag),
+            abi_tag,
             ext_suffix: Some(ext_suffix),
             lib_name: Some(lib_name),
             lib_dir,