diff --git a/src/module_info.cc b/src/module_info.cc
index 5ff8573c2bd3aa6be662e9932b8363275b553141..0ee56a8ad04a0d57cd644de993cc1f0f752d197e 100644
--- a/src/module_info.cc
+++ b/src/module_info.cc
@@ -113,7 +113,7 @@ create_help_sections(const CdoHelp &p_help)
           int op_name_padding = 4;
           std::size_t general_op_desc_pos =  line.find("<operator>");
           if(general_op_desc_pos != std::string::npos){
-            constexpr std::size_t len_generic = std::string("<operator>").size();
+            std::size_t len_generic = std::string("<operator>").size();
             auto cleaned_line = std::string(line).erase(0,general_op_desc_pos + len_generic);
             sections["SYNOPSIS"] = {cleaned_line};
           }