diff --git a/docs/en/engines/table-engines/mergetree-family/mergetree.md b/docs/en/engines/table-engines/mergetree-family/mergetree.md
index 74f1295ef96..317d1cca61e 100644
--- a/docs/en/engines/table-engines/mergetree-family/mergetree.md
+++ b/docs/en/engines/table-engines/mergetree-family/mergetree.md
@@ -1003,16 +1003,16 @@ They can be used for prewhere optimization only if we enable `set allow_statisti
 
     [HyperLogLog](https://en.wikipedia.org/wiki/HyperLogLog) sketches which provide an estimation how many distinct values a column contains.
 
-- `count_min`
+- `CountMin`
 
-    [Count-min](https://en.wikipedia.org/wiki/Count%E2%80%93min_sketch) sketches which provide an approximate count of the frequency of each value in a column.
+    [CountMin](https://en.wikipedia.org/wiki/Count%E2%80%93min_sketch) sketches which provide an approximate count of the frequency of each value in a column.
 
 
 ### Supported Data Types {#supported-data-types}
 
 |           | (U)Int* | Float* | Decimal(*) | Date* | Boolean | Enum* | (Fixed)String    |
 |-----------|---------|--------|------------|-------|---------|-------|------------------|
-| count_min | ✔       | ✔      | ✔          | ✔     | ✔       | ✔     | ✔                |
+| CountMin  | ✔       | ✔      | ✔          | ✔     | ✔       | ✔     | ✔                |
 | MinMax    | ✔       | ✔      | ✔          | ✔     | ✔       | ✔     | ✗                |
 | TDigest   | ✔       | ✔      | ✔          | ✔     | ✔       | ✔     | ✗                |
 | Uniq      | ✔       | ✔      | ✔          | ✔     | ✔       | ✔     | ✔                |
@@ -1022,7 +1022,7 @@ They can be used for prewhere optimization only if we enable `set allow_statisti
 
 |           | Equality filters (==) | Range filters (>, >=, <, <=) |
 |-----------|-----------------------|------------------------------|
-| count_min | ✔                     | ✗                            |
+| CountMin  | ✔                     | ✗                            |
 | MinMax    | ✗                     | ✔                            |
 | TDigest   | ✗                     | ✔                            |
 | Uniq      | ✔                     | ✗                            |
diff --git a/src/Storages/Statistics/Statistics.cpp b/src/Storages/Statistics/Statistics.cpp
index 795963bd55d..0557530515f 100644
--- a/src/Storages/Statistics/Statistics.cpp
+++ b/src/Storages/Statistics/Statistics.cpp
@@ -248,7 +248,7 @@ ColumnStatisticsPtr MergeTreeStatisticsFactory::get(const ColumnDescription & co
     {
         auto it = creators.find(type);
         if (it == creators.end())
-            throw Exception(ErrorCodes::INCORRECT_QUERY, "Unknown statistic type '{}'. Available types: 'count_min', 'minmax', 'tdigest' and 'uniq'", type);
+            throw Exception(ErrorCodes::INCORRECT_QUERY, "Unknown statistic type '{}'. Available types: 'countmin', 'minmax', 'tdigest' and 'uniq'", type);
         auto stat_ptr = (it->second)(desc, column_desc.type);
         column_stat->stats[type] = stat_ptr;
     }
diff --git a/src/Storages/Statistics/StatisticsCountMinSketch.cpp b/src/Storages/Statistics/StatisticsCountMinSketch.cpp
index 1a2459c230d..f477181ec2d 100644
--- a/src/Storages/Statistics/StatisticsCountMinSketch.cpp
+++ b/src/Storages/Statistics/StatisticsCountMinSketch.cpp
@@ -49,7 +49,7 @@ Float64 StatisticsCountMinSketch::estimateEqual(const Field & val) const
     if (isStringOrFixedString(data_type))
         return sketch.get_estimate(val.safeGet<String>());
 
-    throw Exception(ErrorCodes::LOGICAL_ERROR, "Statistics 'count_min' does not support estimate data type of {}", data_type->getName());
+    throw Exception(ErrorCodes::LOGICAL_ERROR, "Statistics 'countmin' does not support estimate data type of {}", data_type->getName());
 }
 
 void StatisticsCountMinSketch::update(const ColumnPtr & column)
@@ -88,7 +88,7 @@ void countMinSketchStatisticsValidator(const SingleStatisticsDescription & /*des
     DataTypePtr inner_data_type = removeNullable(data_type);
     inner_data_type = removeLowCardinalityAndNullable(inner_data_type);
     if (!inner_data_type->isValueRepresentedByNumber() && !isStringOrFixedString(inner_data_type))
-        throw Exception(ErrorCodes::ILLEGAL_STATISTICS, "Statistics of type 'count_min' does not support type {}", data_type->getName());
+        throw Exception(ErrorCodes::ILLEGAL_STATISTICS, "Statistics of type 'countmin' does not support type {}", data_type->getName());
 }
 
 StatisticsPtr countMinSketchStatisticsCreator(const SingleStatisticsDescription & description, const DataTypePtr & data_type)
diff --git a/src/Storages/StatisticsDescription.cpp b/src/Storages/StatisticsDescription.cpp
index 4e0d901d0c7..ac7fa8898de 100644
--- a/src/Storages/StatisticsDescription.cpp
+++ b/src/Storages/StatisticsDescription.cpp
@@ -48,11 +48,11 @@ static StatisticsType stringToStatisticsType(String type)
         return StatisticsType::TDigest;
     if (type == "uniq")
         return StatisticsType::Uniq;
-    if (type == "count_min")
+    if (type == "countmin")
         return StatisticsType::CountMinSketch;
     if (type == "minmax")
         return StatisticsType::MinMax;
-    throw Exception(ErrorCodes::INCORRECT_QUERY, "Unknown statistics type: {}. Supported statistics types are 'count_min', 'minmax', 'tdigest' and 'uniq'.", type);
+    throw Exception(ErrorCodes::INCORRECT_QUERY, "Unknown statistics type: {}. Supported statistics types are 'countmin', 'minmax', 'tdigest' and 'uniq'.", type);
 }
 
 String SingleStatisticsDescription::getTypeName() const
@@ -64,11 +64,11 @@ String SingleStatisticsDescription::getTypeName() const
         case StatisticsType::Uniq:
             return "Uniq";
         case StatisticsType::CountMinSketch:
-            return "count_min";
+            return "countmin";
         case StatisticsType::MinMax:
             return "minmax";
         default:
-            throw Exception(ErrorCodes::LOGICAL_ERROR, "Unknown statistics type: {}. Supported statistics types are 'count_min', 'minmax', 'tdigest' and 'uniq'.", type);
+            throw Exception(ErrorCodes::LOGICAL_ERROR, "Unknown statistics type: {}. Supported statistics types are 'countmin', 'minmax', 'tdigest' and 'uniq'.", type);
     }
 }