diff --git a/pkg/compute/models/networks.go b/pkg/compute/models/networks.go
index 62cc57e789..291bcbc16a 100644
--- a/pkg/compute/models/networks.go
+++ b/pkg/compute/models/networks.go
@@ -372,7 +372,7 @@ func (snet *SNetwork) getFreeIP(addrTable map[string]bool, recentUsedAddrTable m
 			return "", err
 		}
 		if !iprange.Contains(candIP) {
-			return "", httperrors.NewInputParameterError("candidate %s out of range", candidate)
+			return "", httperrors.NewInputParameterError("candidate %s out of range %s", candidate, iprange.String())
 		}
 		if _, ok := addrTable[candidate]; !ok {
 			return candidate, nil