diff --git a/inc/tlpbuf.h b/inc/tlpbuf.h
index 15494d3..311e8ca 100644
--- a/inc/tlpbuf.h
+++ b/inc/tlpbuf.h
@@ -90,7 +90,7 @@
 void pbuf_pool_reset(pbuf_pool_t* pool);
 
 
-#if DEBUG
+#ifdef DEBUG
 void pbuf_pool_dump(pbuf_pool_t* pool);
 else
 static inline void pbuf_pool_dump(pbuf_pool_t* pool) {}
diff --git a/src/tlpbuf.c b/src/tlpbuf.c
index 278b079..351d210 100644
--- a/src/tlpbuf.c
+++ b/src/tlpbuf.c
@@ -44,7 +44,7 @@
 
 
 
-#if DEBUG
+#ifdef DEBUG
 
 #include <debug.h>