2 files changed, 4 insertions, 2 deletions
diff --git a/src/plugins/canbus/peakcan/peakcanbackend.cpp b/src/plugins/canbus/peakcan/peakcanbackend.cpp
index 5b06007..f717111 100644
--- a/src/plugins/canbus/peakcan/peakcanbackend.cpp
+++ b/src/plugins/canbus/peakcan/peakcanbackend.cpp
@@ -249,7 +249,8 @@ bool PeakCanBackendPrivate::setConfigurationParameter(int key, const QVariant &v
     case QCanBusDevice::BitRateKey:
         return verifyBitRate(value.toInt());
     default:
-        q->setError(PeakCanBackend::tr("Unsupported configuration key"), QCanBusDevice::ConfigurationError);
+        q->setError(PeakCanBackend::tr("Unsupported configuration key: %1").arg(key),
+                    QCanBusDevice::ConfigurationError);
         return false;
     }
 }
diff --git a/src/plugins/canbus/tinycan/tinycanbackend.cpp b/src/plugins/canbus/tinycan/tinycanbackend.cpp
index b86e5f9..88edf25 100644
--- a/src/plugins/canbus/tinycan/tinycanbackend.cpp
+++ b/src/plugins/canbus/tinycan/tinycanbackend.cpp
@@ -219,7 +219,8 @@ bool TinyCanBackendPrivate::setConfigurationParameter(int key, const QVariant &v
     case QCanBusDevice::BitRateKey:
         return setBitRate(value.toInt());
     default:
-        q->setError(TinyCanBackend::tr("Unsupported configuration key"), QCanBusDevice::ConfigurationError);
+        q->setError(TinyCanBackend::tr("Unsupported configuration key: %1").arg(key),
+                    QCanBusDevice::ConfigurationError);
         return false;
     }
 }