diff --git a/src/Makefile b/src/Makefile
index ecfdc35e..39a39787 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -38,8 +38,9 @@ CXXFLAGS += -O0 -g
 else
 CXXFLAGS += -O2
 endif
-CXXFLAGS += -Wall -W -Wcast-align -Wcast-qual -Wpointer-arith -Wwrite-strings -Werror
-##CXXFLAGS += -Wshadow
+CXXFLAGS_WERROR = -Werror
+CXXFLAGS += -Wall -W -Wcast-align -Wcast-qual -Wpointer-arith -Wshadow -Wwrite-strings 
+CXXFLAGS += $(CXXFLAGS_WERROR)
 endif
 CPPFLAGS += $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES)
 CXXLD ?= $(CXX)