diff --git a/internal/core/src/segcore/Utils.cpp b/internal/core/src/segcore/Utils.cpp
index d0ee78015a..e14063027d 100644
--- a/internal/core/src/segcore/Utils.cpp
+++ b/internal/core/src/segcore/Utils.cpp
@@ -77,7 +77,7 @@ CreateScalarDataArrayFrom(const void* data_raw, int64_t count, const FieldMeta&
     auto scalar_array = data_array->mutable_scalars();
     switch (data_type) {
         case DataType::BOOL: {
-            auto data = reinterpret_cast<const double*>(data_raw);
+            auto data = reinterpret_cast<const bool*>(data_raw);
             auto obj = scalar_array->mutable_bool_data();
             obj->mutable_data()->Add(data, data + count);
             break;