diff --git a/components/sqldb/registersqldb.pas b/components/sqldb/registersqldb.pas
index 5867c95844..59aa6b3727 100644
--- a/components/sqldb/registersqldb.pas
+++ b/components/sqldb/registersqldb.pas
@@ -28,19 +28,13 @@ unit registersqldb;
 
 {$DEFINE HASIBCONNECTION}
 {$DEFINE HASMYSQL55CONNECTION}
+{$DEFINE HASMYSQL4CONNECTION}
 {$DEFINE HASPQCONNECTION}
 {$DEFINE HASSQLITE3CONNECTION}
 
-{$IFndef win64}
+{$IF (FPC_FULLVERSION>30302) or not defined(win64)}
  {$DEFINE HASORACLECONNECTION}
 {$ENDIF}
-{$IF (FPC_FULLVERSION>30302)}
- {$DEFINE HASORACLECONNECTION}
-{$ENDIF}
-
-{$IFNDEF win64}
- {$DEFINE HASMYSQL4CONNECTION}
-{$ENDIF}
 
 {$IF FPC_FULLVERSION >= 20601}
   // MS SQL Server and Sybase ASE connectors were introduced in the FPC 2.7 development branch,