diff --git a/rugnux/ModelValidation.cpp b/rugnux/ModelValidation.cpp
index d980a530..107adc2e 100644
--- a/rugnux/ModelValidation.cpp
+++ b/rugnux/ModelValidation.cpp
@@ -137,7 +137,8 @@ ModelValidationResult ValidateAgainstModel(const std::vector<MergedReflection> &
         if (r.d > 0 && (d_min == 0.0 || r.d < d_min))
             d_min = r.d;
     if (d_min <= 0.0) {
-        logger.Error("Model validation: merged reflections carry no resolution");
+        result.failure_reason = "the merged reflections carry no resolution";
+        logger.Error("Model validation: {}", result.failure_reason);
         return result;
     }