diff --git a/lib/c/2014/labcomm2014_decoder.c b/lib/c/2014/labcomm2014_decoder.c
index 529c5538411b9654e5ad3ebace6c196883d9f44a..4b078e4dddaeff33df9f796191d247298f41fc41 100644
--- a/lib/c/2014/labcomm2014_decoder.c
+++ b/lib/c/2014/labcomm2014_decoder.c
@@ -26,7 +26,7 @@
 #include "labcomm2014_ioctl.h"
 #include "labcomm2014_dynamic_buffer_writer.h"
 
-#if defined(DEBUG) && !defined(LABCOMM_NO_STDIO)
+#if defined(DEBUG) && !defined(LABCOMM2014_NO_STDIO)
 #define DEBUG_FPRINTF(str, ...) fprintf(str, ##__VA_ARGS__)
 #else
 #define DEBUG_FPRINTF(str, ...)
diff --git a/lib/c/2014/labcomm2014_error.c b/lib/c/2014/labcomm2014_error.c
index 48c3e4ce39c76193a7ff54d37c3f91bbe1ea0854..794096ac9133e94b7ba59997ac250618772fa976 100644
--- a/lib/c/2014/labcomm2014_error.c
+++ b/lib/c/2014/labcomm2014_error.c
@@ -36,7 +36,7 @@ void labcomm2014_error_fatal_global(enum labcomm2014_error error,
 {
   va_list args;
 
-#ifndef LABCOMM_NO_STDIO
+#ifndef LABCOMM2014_NO_STDIO
   fprintf(stderr, "Fatal error %d (%s)\n", error, description[error]);
   va_start(args, format);
   vfprintf(stderr, format, args);
@@ -55,7 +55,7 @@ void labcomm2014_error_warning(struct labcomm2014_error_handler *e,
 {
   va_list args;
 
-#ifndef LABCOMM_NO_STDIO
+#ifndef LABCOMM2014_NO_STDIO
   fprintf(stderr, "Fatal warning %d (%s)\n", error, description[error]);
   va_start(args, format);
   vfprintf(stderr, format, args);