diff --git a/rig/drivers/HamlibRigDrv.cpp b/rig/drivers/HamlibRigDrv.cpp
index 9e7404b4..99883e5a 100644
--- a/rig/drivers/HamlibRigDrv.cpp
+++ b/rig/drivers/HamlibRigDrv.cpp
@@ -10,6 +10,13 @@
 #define HAMLIB_FILPATHLEN FILPATHLEN
 #endif
 
+#ifndef RIG_IS_SOFT_ERRCODE
+#define RIG_IS_SOFT_ERRCODE(errcode) (errcode == RIG_EINVAL || errcode == RIG_ENIMPL || errcode == RIG_ERJCTED \
+    || errcode == RIG_ETRUNC || errcode == RIG_ENAVAIL || errcode == RIG_ENTARGET \
+    || errcode == RIG_EVFO || errcode == RIG_EDOM)
+
+#endif
+
 // macro introduced hamlib 4.6
 #ifndef PTTPORT
 #define PTTPORT(r) (&r->state.pttport)
diff --git a/rotator/drivers/HamlibRotDrv.cpp b/rotator/drivers/HamlibRotDrv.cpp
index b3310624..2b215cb3 100644
--- a/rotator/drivers/HamlibRotDrv.cpp
+++ b/rotator/drivers/HamlibRotDrv.cpp
@@ -19,6 +19,13 @@
 #define HAMLIB_FILPATHLEN FILPATHLEN
 #endif
 
+#ifndef RIG_IS_SOFT_ERRCODE
+#define RIG_IS_SOFT_ERRCODE(errcode) (errcode == RIG_EINVAL || errcode == RIG_ENIMPL || errcode == RIG_ERJCTED \
+    || errcode == RIG_ETRUNC || errcode == RIG_ENAVAIL || errcode == RIG_ENTARGET \
+    || errcode == RIG_EVFO || errcode == RIG_EDOM)
+
+#endif
+
 #define POOL_INTERVAL 500
 
 MODULE_IDENTIFICATION("qlog.rotator.driver.hamlibdrv");