diff --git a/algo/kf/core/geo/KfFieldRegion.h b/algo/kf/core/geo/KfFieldRegion.h
index 299aa5fb853fbe5f941135daa1e9897098792248..248372602f60de7d23f775a601f6fbc1b78a5c7b 100644
--- a/algo/kf/core/geo/KfFieldRegion.h
+++ b/algo/kf/core/geo/KfFieldRegion.h
@@ -234,8 +234,8 @@ namespace cbm::algo::kf
       std::string ToString(int indentLevel = 0, int verbose = 1) const;
 
      protected:
-      CoeffArray_t fCoeff{{T(0.)}};  ///< Approximation coefficients
-      T fZfirst{Literal_t<T>()};     ///< Reference z-coordinate of the field region
+      CoeffArray_t fCoeff{};      ///< Approximation coefficients
+      T fZfirst{Literal_t<T>()};  ///< Reference z-coordinate of the field region
 
      private:
       /// Serialization function