1 files changed, 2 insertions, 2 deletions

diff --git a/makefile b/makefile
index 6efd105..4a29f19 100644
--- a/makefile
+++ b/makefile
@@ -10,10 +10,10 @@ seq-read: seq-read.c
         $(CC) $(CFLAGS) -o $@ $<
 
 csv.o: csv.c csv.h
-        $(CC) $(CFLAGS) -o $@ -c csv.c
+        $(CC) $(CFLAGS) -DNDEBUG -o $@ -c $<
 
 clean:
-        rm csv-test seq-read
+        rm csv-test seq-read csv.o
 
 .PHONY: all clean