diff --git a/ide/main.pp b/ide/main.pp
index 8f7040a1d8..1685ed6e00 100644
--- a/ide/main.pp
+++ b/ide/main.pp
@@ -60,6 +60,9 @@ uses
 {$ENDIF}
   // fpc packages
   Math, Classes, SysUtils, Process, TypInfo, types, strutils, AVL_Tree,
+{$IFDEF UseAsyncProcess}
+  AsyncProcess,
+{$ENDIF}
   // lazutils
   LazUTF8, Laz2_XMLCfg, AvgLvlTree,
   // lcl