diff --git a/components/buildintf/ideoptionsintf.pas b/components/buildintf/ideoptionsintf.pas
index 3074c85742..26f8d15bc6 100644
--- a/components/buildintf/ideoptionsintf.pas
+++ b/components/buildintf/ideoptionsintf.pas
@@ -136,6 +136,7 @@ type
 
     function GetParsedCompilerFilename: string; virtual; abstract;
     function GetParsedFppkgConfig: string; virtual; abstract;
+    function GetParsedLazarusDirectory: string; virtual; abstract;
 
     procedure AddHandlerAddToRecentOpenFiles(Handler: TOnAddToRecent; const AsFirst: boolean = true); // AsFirst means: first to call
     procedure RemoveHandlerAddToRecentOpenFiles(Handler: TOnAddToRecent);
diff --git a/ide/environmentopts.pp b/ide/environmentopts.pp
index dfa1fcce19..797df6fee8 100644
--- a/ide/environmentopts.pp
+++ b/ide/environmentopts.pp
@@ -845,7 +845,7 @@ type
     procedure CreateConfig;
     property OldLazarusVersion: string read FOldLazarusVersion;
 
-    function GetParsedLazarusDirectory: string;
+    function GetParsedLazarusDirectory: string; override;
     function GetParsedTestBuildDirectory: string;
     function GetParsedCompilerFilename: string; override;
     function GetParsedFPCSourceDirectory(FPCVer: string = ''): string;