diff --git a/source/dbconnection.pas b/source/dbconnection.pas
index 6e164402..1ce61858 100644
--- a/source/dbconnection.pas
+++ b/source/dbconnection.pas
@@ -3952,7 +3952,7 @@ begin
     Results.Next;
   end;
   Raw := Raw + CRLF;
-  URL := 'http://mariadb.org/explain_analyzer/api/1/?raw_explain='+EncodeURLParam(Raw)+'&client='+APPNAME;
+  URL := 'https://mariadb.org/explain_analyzer/analyze/?raw_explain='+EncodeURLParam(Raw)+'&client='+APPNAME;
   ShellExec(URL);
 end;
 
diff --git a/source/helpers.pas b/source/helpers.pas
index 0677c2af..3273ff22 100644
--- a/source/helpers.pas
+++ b/source/helpers.pas
@@ -502,7 +502,7 @@ function EncodeURLParam(const Value: String): String;
 var
   c: Char;
 const
-  UnsafeChars: String = '*<>#%"{}|\^[]`?&+';
+  UnsafeChars: String = '*<>#%"{}|\^[]`?&+;';
 begin
   // Encode critical chars in url parameter
   Result := '';