diff --git a/src/NzbDrone.Core/DecisionEngine/Specifications/AcceptableSizeSpecification.cs b/src/NzbDrone.Core/DecisionEngine/Specifications/AcceptableSizeSpecification.cs
index 2f5381093..6b038fe37 100644
--- a/src/NzbDrone.Core/DecisionEngine/Specifications/AcceptableSizeSpecification.cs
+++ b/src/NzbDrone.Core/DecisionEngine/Specifications/AcceptableSizeSpecification.cs
@@ -57,7 +57,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                     return Decision.Reject("{0} is smaller than minimum allowed: {1}", subject.Release.Size.SizeSuffix(), minSize.SizeSuffix());
                 }
             }
-            if (!qualityDefinition.MaxSize.HasValue)
+            if (!qualityDefinition.MaxSize.HasValue || qualityDefinition.MaxSize.Value == 0)
             {
                 _logger.Debug("Max size is unlimited - skipping check.");
             }