diff --git a/Makefile b/Makefile
index 3bfe6d3..e7fb94b 100644
--- a/Makefile
+++ b/Makefile
@@ -15,7 +15,7 @@ MANDIR ?= $(DATADIR)/man
 RM := /bin/rm -f
 INSTALL := /usr/bin/install -c
 
-CXXFLAGS := $(CXXFLAGS) -Wshadow -Wall -Wpedantic -Wextra -g -fno-strict-aliasing -std=c++17 -pthread
+CXXFLAGS += -Wshadow -Wall -Wpedantic -Wextra -g -std=c++17
 ifeq ($(DEBUG),1)
 	CXXFLAGS += -D DEBUG -O0
 else