diff --git a/src/Dictionaries/ExecutablePoolDictionarySource.cpp b/src/Dictionaries/ExecutablePoolDictionarySource.cpp
index 10164fe7310..c5d081bb3e6 100644
--- a/src/Dictionaries/ExecutablePoolDictionarySource.cpp
+++ b/src/Dictionaries/ExecutablePoolDictionarySource.cpp
@@ -4,9 +4,6 @@
 #include <common/LocalDateTime.h>
 #include <Common/ShellCommand.h>
 
-#include <IO/WriteHelpers.h>
-#include <IO/ReadHelpers.h>
-
 #include <DataStreams/formatBlock.h>
 
 #include <Interpreters/Context.h>
diff --git a/tests/config/executable_dictionary.xml b/tests/config/executable_dictionary.xml
index 6089f57a3d7..e2b0bd0663e 100644
--- a/tests/config/executable_dictionary.xml
+++ b/tests/config/executable_dictionary.xml
@@ -123,8 +123,8 @@
 
     <source>
         <executable>
-            <command>printf "1\tValue\n"</command>
-            <format>TabSeparated</format>
+            <format>JSONEachRow</format>
+            <command>cd /; clickhouse-local --input-format JSONEachRow --output-format JSONEachRow --structure 'id UInt64' --query "SELECT id, 'Value' AS value FROM table"</command>
             <implicit_key>false</implicit_key>
         </executable>
     </source>
@@ -156,8 +156,8 @@
 
     <source>
         <executable>
-            <command>echo "Value"</command>
-            <format>TabSeparated</format>
+            <format>JSONEachRow</format>
+            <command>cd /; clickhouse-local --input-format JSONEachRow --output-format JSONEachRow --structure 'id UInt64' --query "SELECT 'Value' AS value FROM table"</command>
             <implicit_key>true</implicit_key>
         </executable>
     </source>
@@ -197,8 +197,8 @@
 
     <source>
         <executable>
-            <command>printf "1\tFirstKey\tValue\n"</command>
-            <format>TabSeparated</format>
+            <format>JSONEachRow</format>
+            <command>cd /; clickhouse-local --input-format JSONEachRow --output-format JSONEachRow --structure 'id UInt64, id_key String' --query "SELECT id, id_key, 'Value' AS value FROM table"</command>
             <implicit_key>false</implicit_key>
         </executable>
     </source>
@@ -238,8 +238,8 @@
 
     <source>
         <executable>
-            <command>echo "Value"</command>
-            <format>TabSeparated</format>
+            <format>JSONEachRow</format>
+            <command>cd /; clickhouse-local --input-format JSONEachRow --output-format JSONEachRow --structure 'id UInt64, id_key String' --query "SELECT 'Value' AS value FROM table"</command>
             <implicit_key>true</implicit_key>
         </executable>
     </source>