diff --git a/ncdap_test/test_partvar.c b/ncdap_test/test_partvar.c
index 0f8303346..d63f9f614 100644
--- a/ncdap_test/test_partvar.c
+++ b/ncdap_test/test_partvar.c
@@ -33,7 +33,7 @@ variables:
 #define ERRCODE 2
 #define ERR(e) {printf("Error: %s\n", nc_strerror(e)); exit(ERRCODE);}
 
-#define DEBUG
+#undef DEBUG
 
 /* Setup an odometer */
 typedef struct Odom {