diff --git a/gtests/net/packetdrill/logging.h b/gtests/net/packetdrill/logging.h
index 6436c1d09a0569a082a49d03fa29636928e1a86d..2544c59cb549fede8160db8aef9a84c7c3467504 100644
--- a/gtests/net/packetdrill/logging.h
+++ b/gtests/net/packetdrill/logging.h
@@ -28,7 +28,7 @@
 #include "types.h"
 
 /* Enable this to get debug logging. */
-#define DEBUG_LOGGING 1
+#define DEBUG_LOGGING 0
 
 /* Use a gcc variadic macro to conditionally compile debug printing. */
 #define DEBUGP(...)				\