diff --git a/Makefile b/Makefile
index f651f9b..a35688a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 HEADERS=triangle.h linalg.h queue.h
 
-SPECIAL_OPTIONS=-O0 -g -D_DEBUG
+SPECIAL_OPTIONS=-O0 -g -D_DEBUG -Wall
 #SPECIAL_OPTIONS=-O3 -pg -funroll-loops -fno-inline
 #SPECIAL_OPTIONS=-O3 -flto -funroll-loops -Winline
 #SPECIAL_OPTIONS=