diff --git a/master/ethernet.c b/master/ethernet.c
index a7a46746..dd9565b1 100644
--- a/master/ethernet.c
+++ b/master/ethernet.c
@@ -324,7 +324,7 @@ void ec_eoe_run(ec_eoe_t *eoe /**< EoE handler */)
 
     // if the datagram was not sent, or is not yet received, skip this cycle
     if (eoe->queue_datagram ||
-        eoe->datagram.state == EC_DATAGRAM_SENT || eoe->datagram.state == EC_DATAGRAM_QUEUED)
+        eoe->datagram.state == EC_DATAGRAM_QUEUED || eoe->datagram.state == EC_DATAGRAM_SENT)
         return;
 
     // call state function
diff --git a/master/fsm_master.c b/master/fsm_master.c
index 3ccc4c86..12d56a7b 100644
--- a/master/fsm_master.c
+++ b/master/fsm_master.c
@@ -133,8 +133,8 @@ int ec_fsm_master_exec(
         ec_fsm_master_t *fsm /**< Master state machine. */
         )
 {
-    if (fsm->datagram->state == EC_DATAGRAM_SENT
-        || fsm->datagram->state == EC_DATAGRAM_QUEUED) {
+    if (fsm->datagram->state == EC_DATAGRAM_QUEUED
+        || fsm->datagram->state == EC_DATAGRAM_SENT) {
         // datagram was not sent or received yet.
         return 0;
     }
diff --git a/master/fsm_slave.c b/master/fsm_slave.c
index e1700c73..3d7be157 100644
--- a/master/fsm_slave.c
+++ b/master/fsm_slave.c
@@ -101,8 +101,8 @@ int ec_fsm_slave_exec(
         ec_fsm_slave_t *fsm /**< Slave state machine. */
         )
 {
-    if (fsm->datagram->state == EC_DATAGRAM_SENT
-        || fsm->datagram->state == EC_DATAGRAM_QUEUED) {
+    if (fsm->datagram->state == EC_DATAGRAM_QUEUED
+        || fsm->datagram->state == EC_DATAGRAM_SENT) {
         // datagram was not sent or received yet.
         return 0;
     }
diff --git a/master/fsm_slave_config.c b/master/fsm_slave_config.c
index 6140ffa9..cbcc7359 100644
--- a/master/fsm_slave_config.c
+++ b/master/fsm_slave_config.c
@@ -177,8 +177,8 @@ int ec_fsm_slave_config_exec(
         ec_fsm_slave_config_t *fsm /**< slave state machine */
         )
 {
-    if (fsm->datagram->state == EC_DATAGRAM_SENT
-        || fsm->datagram->state == EC_DATAGRAM_QUEUED) {
+    if (fsm->datagram->state == EC_DATAGRAM_QUEUED
+        || fsm->datagram->state == EC_DATAGRAM_SENT) {
         // datagram was not sent or received yet.
         return ec_fsm_slave_config_running(fsm);
     }
diff --git a/master/fsm_slave_scan.c b/master/fsm_slave_scan.c
index 18b4e371..306fc3fc 100644
--- a/master/fsm_slave_scan.c
+++ b/master/fsm_slave_scan.c
@@ -137,8 +137,8 @@ int ec_fsm_slave_scan_running(const ec_fsm_slave_scan_t *fsm /**< slave state ma
 
 int ec_fsm_slave_scan_exec(ec_fsm_slave_scan_t *fsm /**< slave state machine */)
 {
-    if (fsm->datagram->state == EC_DATAGRAM_SENT
-        || fsm->datagram->state == EC_DATAGRAM_QUEUED) {
+    if (fsm->datagram->state == EC_DATAGRAM_QUEUED
+        || fsm->datagram->state == EC_DATAGRAM_SENT) {
         // datagram was not sent or received yet.
         return ec_fsm_slave_scan_running(fsm);
     }