diff --git a/compiler/systems/t_wasi.pas b/compiler/systems/t_wasi.pas
index f8c4b57085..14981962e1 100644
--- a/compiler/systems/t_wasi.pas
+++ b/compiler/systems/t_wasi.pas
@@ -214,7 +214,7 @@ begin
   if HasExports then
     cmdstr := cmdstr + ' --export-dynamic'; //' --export-dynamic';
 
-  cmdstr := cmdstr + ' --no-entry --allow-undefined';
+  cmdstr := cmdstr + ' --no-entry';
 
   if (cs_link_strip in current_settings.globalswitches) then
    begin