diff --git a/CMakeLists.txt b/CMakeLists.txt
index 49238668..b41c5a97 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -13,7 +13,7 @@ endif()
 
 set(PSEMEK_CXX_FLAGS)
 if((CMAKE_CXX_COMPILER_ID STREQUAL "GNU") OR (CMAKE_CXX_COMPILER_ID STREQUAL "Clang"))
-	list(APPEND PSEMEK_CXX_FLAGS -Wall -Werror -Wextra -pedantic)
+	list(APPEND PSEMEK_CXX_FLAGS -Wall -Werror -Wextra -pedantic -Wno-narrowing -Wno-sign-compare)
 endif()
 
 add_subdirectory(package)