diff --git a/src/classic/btstack_cvsd_plc.c b/src/classic/btstack_cvsd_plc.c
index 182ca6d8b..224922263 100644
--- a/src/classic/btstack_cvsd_plc.c
+++ b/src/classic/btstack_cvsd_plc.c
@@ -43,10 +43,13 @@
  */
 
 #include <stdint.h>
-#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
+#ifdef OCTAVE_OUTPUT
+#include <stdio.h>
+#endif
+
 #include "btstack_cvsd_plc.h"
 #include "btstack_debug.h"
 
diff --git a/src/classic/btstack_sbc_plc.c b/src/classic/btstack_sbc_plc.c
index 85b89ec7a..b5b23e36a 100644
--- a/src/classic/btstack_sbc_plc.c
+++ b/src/classic/btstack_sbc_plc.c
@@ -43,10 +43,13 @@
  */
 
 #include <stdint.h>
-#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
+#ifdef OCTAVE_OUTPUT
+#include <stdio.h>
+#endif
+
 #include "btstack_sbc_plc.h"
 #include "btstack_debug.h"
 
diff --git a/src/classic/obex_iterator.c b/src/classic/obex_iterator.c
index 6c4c5698c..dad75d902 100644
--- a/src/classic/obex_iterator.c
+++ b/src/classic/obex_iterator.c
@@ -42,6 +42,10 @@
 #include <stdint.h>
 #include <stdlib.h>
 
+#ifdef ENABLE_OBEX_DUMP
+#include <stdio.h>
+#endif
+
 #include "hci_cmd.h"
 #include "btstack_debug.h"
 #include "hci.h"
@@ -155,6 +159,7 @@ const uint8_t * obex_iterator_get_data(const obex_iterator_t * context){
     }
 }
 
+#ifdef ENABLE_OBEX_DUMP
 void obex_dump_packet(uint8_t request_opcode, uint8_t * packet, uint16_t size){
     obex_iterator_t it;
     printf("OBEX Opcode: 0x%02x\n", request_opcode);
@@ -185,3 +190,4 @@ void obex_dump_packet(uint8_t request_opcode, uint8_t * packet, uint16_t size){
 
     }
 }
+#endif