diff --git a/funcs/Makefile b/funcs/Makefile
index 22648a95..ca69a5de 100644
--- a/funcs/Makefile
+++ b/funcs/Makefile
@@ -1,6 +1,6 @@
 #---------------------------------------------------------------
 
-COPT = -Wall -fpic -g -no-pie -DDEBUG_LEVEL=1
+COPT = -Wall -fpic -g -no-pie -DDEBUG_LEVEL=0
 DEPS = ../floatimg.h Makefile
 OBJS = fimg-png.o fimg-tiff.o misc-plots.o filtrage.o utils.o	\
 	fimg-libpnm.o