diff --git a/RhSolutions.AddIn/Services/GuessReader.cs b/RhSolutions.AddIn/Services/GuessReader.cs
index 09bb5a0..c3f36e4 100644
--- a/RhSolutions.AddIn/Services/GuessReader.cs
+++ b/RhSolutions.AddIn/Services/GuessReader.cs
@@ -151,7 +151,9 @@ public class GuessReader : IReader
             }
         }
 
-        return successCounter > 1;
+            return (column.Rows.Count > 1 && successCounter > 0)
+                || successCounter > 1;
+        }
     }
 
     private Dictionary<Product, double> GetDictionaryFromColumns(Range productColumn, Range amountColumn)