diff --git a/mysql/assets/configuration/spec.yaml b/mysql/assets/configuration/spec.yaml
index a80c799a8849e..5eecd404119cb 100644
--- a/mysql/assets/configuration/spec.yaml
+++ b/mysql/assets/configuration/spec.yaml
@@ -33,7 +33,7 @@ files:
             value:
               type: string
               example: localhost
-              default: None
+              default: null
 
           - name: user
             description: |
@@ -42,7 +42,7 @@ files:
             value:
               type: string
               example: datadog
-              default: None
+              default: null
 
           - name: pass
             description: |
@@ -58,7 +58,6 @@ files:
             value:
               type: number
               example: 3306
-              default: None
 
           - name: sock
             description: |
diff --git a/mysql/datadog_checks/mysql/data/conf.yaml.example b/mysql/datadog_checks/mysql/data/conf.yaml.example
index d69e349fc392e..55608f094c014 100644
--- a/mysql/datadog_checks/mysql/data/conf.yaml.example
+++ b/mysql/datadog_checks/mysql/data/conf.yaml.example
@@ -25,14 +25,14 @@ init_config:
 #
 instances:
 
-    ## @param host - string - optional - default: None
+    ## @param host - string - optional
     ## MySQL host to connect to.
     ## NOTE: Even if the host is "localhost", the agent connects to MySQL using TCP/IP, unless you also
     ## provide a value for the sock key (below).
     #
   - host: localhost
 
-    ## @param user - string - optional - default: None
+    ## @param user - string - optional
     ## Username used to connect to MySQL.
     #
     user: datadog
@@ -42,7 +42,7 @@ instances:
     #
     pass: <PASS>
 
-    ## @param port - number - optional - default: None
+    ## @param port - number - optional - default: 3306
     ## Port to use when connecting to MySQL.
     #
     port: 3306