diff --git a/subsys/net/lib/lwm2m/lwm2m_engine.c b/subsys/net/lib/lwm2m/lwm2m_engine.c
index c5bb5d298f4..804c020a34d 100644
--- a/subsys/net/lib/lwm2m/lwm2m_engine.c
+++ b/subsys/net/lib/lwm2m/lwm2m_engine.c
@@ -75,8 +75,6 @@
 #define REG_PREFACE		""
 #endif
 
-#define BUF_ALLOC_TIMEOUT K_SECONDS(1)
-
 #define MAX_TOKEN_LEN		8
 
 struct observe_node {
diff --git a/subsys/net/lib/lwm2m/lwm2m_engine.h b/subsys/net/lib/lwm2m/lwm2m_engine.h
index ce90b40ac83..cb3d7f0c7dc 100644
--- a/subsys/net/lib/lwm2m/lwm2m_engine.h
+++ b/subsys/net/lib/lwm2m/lwm2m_engine.h
@@ -35,6 +35,9 @@
 /* Use this value to skip token generation */
 #define LWM2M_MSG_TOKEN_LEN_SKIP	0xFF
 
+/* length of time in milliseconds to wait for buffer allocations */
+#define BUF_ALLOC_TIMEOUT K_SECONDS(1)
+
 struct lwm2m_message;
 
 /* Establish a message timeout callback */