diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8c04651..865103b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required (VERSION 3.16)
 
 SET(CMAKE_CXX_STANDARD 20)
-SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wpedantic -Werror=pedantic -Wextra")
+SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Werror -Wpedantic -Werror=pedantic -Wextra")
 
 SET(PRJ_NAME "siguni")
 project(${PRJ_NAME})
diff --git a/helper.cpp b/helper.cpp
index 348668e..1202d65 100644
--- a/helper.cpp
+++ b/helper.cpp
@@ -61,8 +61,8 @@ namespace siguni::helper
    }
 
    std::vector<std::string_view> 
-   CSignalStrings::GetValueItems( const std::string & attString, 
-                                  const char attSplitCharacter )
+   CSignalStrings::GetValueItems( const std::string & /*attString*/, 
+                                  const char /*attSplitCharacter*/ )
    {
       std::vector<std::string_view> items;
       return items;