diff --git a/ide/fpmake.pp b/ide/fpmake.pp
index 0f6bbf7aa0..33e7e49595 100644
--- a/ide/fpmake.pp
+++ b/ide/fpmake.pp
@@ -2,7 +2,10 @@
 {$mode objfpc}{$H+}
 program fpmake;
 
-uses fpmkunit;
+uses
+  fpmkunit,
+  sysutils,
+  classes;
 {$endif ALLPACKAGES}
 
 function IdeGetApplicationName: string;