diff --git a/makefile b/makefile
index e0366af..dd57147 100644
--- a/makefile
+++ b/makefile
@@ -28,6 +28,11 @@ FLAGS += -flto
 #FLAGS += -Wno-sign-conversion
 #FLAGS += -Wformat-truncation=0
 
+ifneq (, $(EXTRA_FLAGS))
+	FLAGS += $(EXTRA_FLAGS)
+endif
+
+
 # Compile flag for defining GITHASH to put at the end of the version string
 GITFLAG = -D'GITHASH=$(shell git rev-parse --short=1 HEAD)'