diff --git a/lib/libdisk/libdisk.h b/lib/libdisk/libdisk.h
index c988adc6f84..cc6b2fdc5a5 100644
--- a/lib/libdisk/libdisk.h
+++ b/lib/libdisk/libdisk.h
@@ -10,7 +10,7 @@
 *
 */
 
-#define DEBUG 1
+/* #define DEBUG 1 */
 /* You can define a particular architecture here if you are debugging. */
 /* #define P_DEBUG p_sparc64 */