diff --git a/src/Interpreters/convertFieldToType.cpp b/src/Interpreters/convertFieldToType.cpp
index 737353095b8..a9729404ab3 100644
--- a/src/Interpreters/convertFieldToType.cpp
+++ b/src/Interpreters/convertFieldToType.cpp
@@ -243,9 +243,9 @@ Field convertFieldToTypeImpl(const Field & src, const IDataType & type, const ID
             return dynamic_cast<const IDataTypeEnum &>(type).castToValue(src);
         }
 
-        if ((which_type.isDate() || which_type.isDateTime()) && src.getType() == Field::Types::UInt64)
+        if ((which_type.isDate() || which_type.isDateTime()) && (src.getType() == Field::Types::UInt64 || src.getType() == Field::Types::Decimal64))
         {
-            /// We don't need any conversion UInt64 is under type of Date and DateTime
+            /// We don't need any conversion as both Decimal64 and UInt64 are under types of Date and DateTime
             return src;
         }