diff --git a/cpp/Makefile b/cpp/Makefile
index 7d5a5df..2e4ca8d 100644
--- a/cpp/Makefile
+++ b/cpp/Makefile
@@ -14,7 +14,8 @@ EXE_EXT  = out
 main: CXXFLAGS += -O3
 main: compilation
 
-dev: CXXFLAGS += -Wall -Wextra -Wshadow -Wnon-virtual-dtor -pedantic -g -Wold-style-cast -Wsign-conversion
+dev: CXXFLAGS += -Wall -Wextra -Wshadow -Wnon-virtual-dtor -pedantic -g
+dev: CXXFLAGS += -Wold-style-cast -Wsign-conversion
 dev: compilation
 
 compilation: $(OBJETS)