diff --git a/include/h5pp/details/h5ppHdf5.h b/include/h5pp/details/h5ppHdf5.h
index 4cbbcd3d..aad55a4d 100644
--- a/include/h5pp/details/h5ppHdf5.h
+++ b/include/h5pp/details/h5ppHdf5.h
@@ -304,6 +304,7 @@ namespace h5pp::hdf5 {
         info.memberSizes  = std::vector<size_t>(nmemb);
         info.memberIndex  = std::vector<int>(nmemb);
         info.memberOffset = std::vector<size_t>(nmemb);
+        info.memberClass  = std::vector<H5T_class_t>(nmemb);
         if(info.h5Class.value() == H5T_COMPOUND) {
             for(size_t idx = 0; idx < nmemb; idx++) {
                 char *name                         = H5Tget_member_name(h5Type, type::safe_cast<unsigned int>(idx));
@@ -312,6 +313,7 @@ namespace h5pp::hdf5 {
                 info.memberSizes->operator[](idx)  = H5Tget_size(info.memberTypes->operator[](idx));
                 info.memberIndex->operator[](idx)  = H5Tget_member_index(h5Type, name);
                 info.memberOffset->operator[](idx) = H5Tget_member_offset(h5Type, type::safe_cast<unsigned int>(idx));
+                info.memberClass->operator[](idx)  = H5Tget_member_class(h5Type, type::safe_cast<unsigned int>(idx));
                 H5free_memory(name);
             }
         }
diff --git a/include/h5pp/details/h5ppInfo.h b/include/h5pp/details/h5ppInfo.h
index 4c7bae45..26105ac4 100644
--- a/include/h5pp/details/h5ppInfo.h
+++ b/include/h5pp/details/h5ppInfo.h
@@ -838,6 +838,7 @@ namespace h5pp {
         std::optional<std::vector<size_t>>      memberSizes  = std::nullopt;
         std::optional<std::vector<size_t>>      memberOffset = std::nullopt;
         std::optional<std::vector<int>>         memberIndex  = std::nullopt;
+        std::optional<std::vector<H5T_class_t>> memberClass  = std::nullopt;
         [[nodiscard]] std::string               string(bool enable = true) const {
             if(not enable) return {};
             std::string msg;
@@ -853,16 +854,18 @@ namespace h5pp {
             if(not enable) return {};
             std::string msg;
             /* clang-format off */
-            if(numMembers){
-                msg.append(h5pp::format("Fields ({}):\n", numMembers.value()));
-                for(size_t m = 0; m < type::safe_cast<size_t>(numMembers.value()); m++){
-                    if(memberIndex and memberIndex->size() > m) msg.append(h5pp::format("    [{:^3}] ", memberIndex->operator[](m)));
-                    if(memberNames and memberNames->size() > m) msg.append(h5pp::format(" {:<32} ", memberNames->operator[](m)));
-                    if(memberTypes and memberTypes->size() > m) msg.append(h5pp::format("| {:<16} ", type::getH5TypeName(memberTypes->operator[](m))));
-                    if(memberSizes and memberSizes->size() > m) msg.append(h5pp::format("| size {:<4} bytes ", memberSizes->operator[](m)));
-                    if(memberOffset and memberOffset->size() > m) msg.append(h5pp::format("| offset {:<4} bytes", memberOffset->operator[](m)));
-                }
+            std::string msg = fmt::format("{1:4}: {2:{0}} | {3:6} | {4:6} | {5:16} | {6:24}\n", nwidth, "idx", "name", "size", "offset", "class", "type");
+            for(size_t m = 0; m < type::safe_cast<size_t>(numMembers.value()); ++m) {
+                msg += fmt::format("{1:4}: {2:{0}} | {3:6} | {4:6} | {5:16} | {6:24}\n", nwidth,
+                                         m,
+                                         memberNames and memberNames->size() > m ? memberNames->at(m) : "",
+                                         memberSizes and memberSizes->size() > m ? memberSizes->at(m) : -1ul,
+                                         memberOffset and memberOffset->size() > m ? memberOffset->at(m) : -1ul,
+                                         memberClass and memberClass->size() > m ? h5pp::type::getH5ClassName(memberClass->at(m)) : "",
+                                         memberTypes and memberTypes->size() > m ? h5pp::type::getH5TypeName(memberTypes->at(m)) : ""
+                                         );
             }
+            /* clang-format on */
             return msg;
             /* clang-format on */
         }