diff --git a/cpp/src/arrow/python/common.cc b/cpp/src/arrow/python/common.cc
index ad7864697e5f2..cd8f0f67518e6 100644
--- a/cpp/src/arrow/python/common.cc
+++ b/cpp/src/arrow/python/common.cc
@@ -159,7 +159,7 @@ bool IsPythonError(const Status& status) {
   if (status.ok()) {
     return false;
   }
-  auto detail = status.detail().get();
+  auto* detail = status.detail();
   return detail != nullptr && detail->type_id() == kErrorDetailTypeId;
 }