diff --git a/cpu/sam0_common/periph/adc.c b/cpu/sam0_common/periph/adc.c
index e1f7bdc5492dae4ab42496b8074ee8c1092af09e..3975e77f3f5fc79926e60edb68d8acfb6ea57a13 100644
--- a/cpu/sam0_common/periph/adc.c
+++ b/cpu/sam0_common/periph/adc.c
@@ -15,7 +15,7 @@
 #include "periph_conf.h"
 #include "mutex.h"
 
-#define ENABLE_DEBUG (1)
+#define ENABLE_DEBUG (0)
 #include "debug.h"
 
 /* Only if we actually have any ADCs */
diff --git a/cpu/samd21/periph/pm.c b/cpu/samd21/periph/pm.c
index 3ab020f3c094c3a110c1b607878ccaeecdfb8a1f..a9c9839c1202184e8f32e3cbafe5c029231d8b44 100644
--- a/cpu/samd21/periph/pm.c
+++ b/cpu/samd21/periph/pm.c
@@ -24,7 +24,7 @@
 
 #include "periph/pm.h"
 
-#define ENABLE_DEBUG (1)
+#define ENABLE_DEBUG (0)
 #include "debug.h"
 
 enum system_sleepmode {
diff --git a/cpu/stm32_common/periph/pm.c b/cpu/stm32_common/periph/pm.c
index 1c72bbfc09977b566cecf5de331e707c23ccb382..57497af462e0cbffdfb3846879f74c0e394297e2 100644
--- a/cpu/stm32_common/periph/pm.c
+++ b/cpu/stm32_common/periph/pm.c
@@ -25,7 +25,7 @@
 #include "irq.h"
 #include "periph/pm.h"
 
-#define ENABLE_DEBUG (1)
+#define ENABLE_DEBUG (0)
 #include "debug.h"
 
 void pm_set(unsigned mode)
diff --git a/drivers/lsm6dsl/lsm6dsl.c b/drivers/lsm6dsl/lsm6dsl.c
index 3b1b911c3f0641df6963d053301d2cb0717bb3c7..ce418eb6b1de50178fda286fad1f9d59f1d538aa 100644
--- a/drivers/lsm6dsl/lsm6dsl.c
+++ b/drivers/lsm6dsl/lsm6dsl.c
@@ -19,7 +19,7 @@
 #include "lsm6dsl.h"
 #include "lsm6dsl_internal.h"
 
-#define ENABLE_DEBUG (1)
+#define ENABLE_DEBUG (0)
 #include "debug.h"
 
 #define MAX(a, b) ((a) > (b) ? (a) : (b))
diff --git a/examples/dtls-echo/dtls-client.c b/examples/dtls-echo/dtls-client.c
index b5dcbce24e12174fa1f7b1ae14c649d5a0c49fdf..63a8d76cc6307464591638ee98b7d218748ef390 100644
--- a/examples/dtls-echo/dtls-client.c
+++ b/examples/dtls-echo/dtls-client.c
@@ -30,7 +30,7 @@
 #include "timex.h"
 #include "xtimer.h"
 
-#define ENABLE_DEBUG  (1)
+#define ENABLE_DEBUG (0)
 #include "debug.h"
 
 /* TinyDTLS */
diff --git a/examples/dtls-echo/dtls-server.c b/examples/dtls-echo/dtls-server.c
index bbec858e111aefecd4278fc8419bf54245e817da..0bbd58d8ab1d581ca8db2a28f4992f67fb2dd877 100644
--- a/examples/dtls-echo/dtls-server.c
+++ b/examples/dtls-echo/dtls-server.c
@@ -37,7 +37,7 @@
 #include "dtls_debug.h"
 #include "tinydtls.h"
 
-#define ENABLE_DEBUG  (1)
+#define ENABLE_DEBUG (0)
 #include "debug.h"
 
 //#define DEFAULT_PORT 20220    /* DTLS default port  */