diff --git a/subsys/net/lib/lwm2m/lwm2m_engine.c b/subsys/net/lib/lwm2m/lwm2m_engine.c
index d29efd5370d..e7ee0bb67f6 100644
--- a/subsys/net/lib/lwm2m/lwm2m_engine.c
+++ b/subsys/net/lib/lwm2m/lwm2m_engine.c
@@ -2640,8 +2640,7 @@ static int do_read_op(struct lwm2m_engine_obj *obj,
 							       res->res_id);
 			if (!obj_field) {
 				ret = -ENOENT;
-			} else if ((obj_field->permissions &
-				    LWM2M_PERM_R) != LWM2M_PERM_R) {
+			} else if (!LWM2M_HAS_PERM(obj_field, LWM2M_PERM_R)) {
 				ret = -EPERM;
 			} else {
 				/* formatter startup if needed */
diff --git a/subsys/net/lib/lwm2m/lwm2m_object.h b/subsys/net/lib/lwm2m/lwm2m_object.h
index 0b6892912bf..b4d1a7c913d 100644
--- a/subsys/net/lib/lwm2m/lwm2m_object.h
+++ b/subsys/net/lib/lwm2m/lwm2m_object.h
@@ -81,6 +81,8 @@
 				 LWM2M_OP_BIT(LWM2M_OP_CREATE) | \
 				 LWM2M_OP_BIT(LWM2M_OP_EXECUTE))
 
+#define LWM2M_HAS_PERM(of, p)	((of->permissions & p) == p)
+
 /* resource types */
 #define LWM2M_RES_TYPE_NONE	0
 #define LWM2M_RES_TYPE_OPAQUE	1
diff --git a/subsys/net/lib/lwm2m/lwm2m_rw_json.c b/subsys/net/lib/lwm2m/lwm2m_rw_json.c
index a241a5af597..c1ade833fc5 100644
--- a/subsys/net/lib/lwm2m/lwm2m_rw_json.c
+++ b/subsys/net/lib/lwm2m/lwm2m_rw_json.c
@@ -569,8 +569,7 @@ int do_write_op_json(struct lwm2m_engine_obj *obj,
 				goto skip_optional;
 			}
 
-			if ((obj_field->permissions & LWM2M_PERM_W) !=
-			     LWM2M_PERM_W) {
+			if (!LWM2M_HAS_PERM(obj_field, LWM2M_PERM_W)) {
 				return -EPERM;
 			}
 
diff --git a/subsys/net/lib/lwm2m/lwm2m_rw_oma_tlv.c b/subsys/net/lib/lwm2m/lwm2m_rw_oma_tlv.c
index ae8c1e8cc31..2d2953b31b2 100644
--- a/subsys/net/lib/lwm2m/lwm2m_rw_oma_tlv.c
+++ b/subsys/net/lib/lwm2m/lwm2m_rw_oma_tlv.c
@@ -741,7 +741,7 @@ static int do_write_op_tlv_item(struct lwm2m_engine_context *context)
 		return -ENOENT;
 	}
 
-	if ((obj_field->permissions & LWM2M_PERM_W) != LWM2M_PERM_W) {
+	if (!LWM2M_HAS_PERM(obj_field, LWM2M_PERM_W)) {
 		return -EPERM;
 	}
 
diff --git a/subsys/net/lib/lwm2m/lwm2m_rw_plain_text.c b/subsys/net/lib/lwm2m/lwm2m_rw_plain_text.c
index d3764a4b31c..79d47bf5627 100644
--- a/subsys/net/lib/lwm2m/lwm2m_rw_plain_text.c
+++ b/subsys/net/lib/lwm2m/lwm2m_rw_plain_text.c
@@ -354,7 +354,7 @@ int do_write_op_plain_text(struct lwm2m_engine_obj *obj,
 		return -ENOENT;
 	}
 
-	if ((obj_field->permissions & LWM2M_PERM_W) != LWM2M_PERM_W) {
+	if (!LWM2M_HAS_PERM(obj_field, LWM2M_PERM_W)) {
 		return -EPERM;
 	}