diff --git a/src/Analyzer/Resolve/QueryAnalyzer.cpp b/src/Analyzer/Resolve/QueryAnalyzer.cpp
index b1fe2554988..51fe5ee6ec2 100644
--- a/src/Analyzer/Resolve/QueryAnalyzer.cpp
+++ b/src/Analyzer/Resolve/QueryAnalyzer.cpp
@@ -1740,7 +1740,7 @@ QueryAnalyzer::QueryTreeNodesWithNames QueryAnalyzer::resolveQualifiedMatcher(Qu
         const auto * tuple_data_type = typeid_cast<const DataTypeTuple *>(result_type.get());
         if (!tuple_data_type)
             throw Exception(ErrorCodes::UNSUPPORTED_METHOD,
-                "Qualified matcher {} find non compound expression {} with type {}. Expected tuple or array of tuples. In scope {}",
+                "Qualified matcher {} found a non-compound expression {} with type {}. Expected a tuple or an array of tuples. In scope {}",
                 matcher_node->formatASTForErrorMessage(),
                 expression_query_tree_node->formatASTForErrorMessage(),
                 expression_query_tree_node->getResultType()->getName(),
diff --git a/src/Interpreters/SubstituteColumnOptimizer.h b/src/Interpreters/SubstituteColumnOptimizer.h
index 28aa8be0801..ecb65cd7707 100644
--- a/src/Interpreters/SubstituteColumnOptimizer.h
+++ b/src/Interpreters/SubstituteColumnOptimizer.h
@@ -15,7 +15,7 @@ struct StorageInMemoryMetadata;
 using StorageMetadataPtr = std::shared_ptr<const StorageInMemoryMetadata>;
 
 /// Optimizer that tries to replace columns to equal columns (according to constraints)
-/// with lower size (according to compressed and uncomressed size).
+/// with lower size (according to compressed and uncompressed sizes).
 class SubstituteColumnOptimizer
 {
 public: