diff --git a/compiler/wasm32/aasmcpu.pas b/compiler/wasm32/aasmcpu.pas
index 1bdeebcb94..fefc6aabd2 100644
--- a/compiler/wasm32/aasmcpu.pas
+++ b/compiler/wasm32/aasmcpu.pas
@@ -548,6 +548,8 @@ implementation
                     internalerror(2021092011);
                 end;
             end;
+          a_end_function:
+            result:=0;
           else
             Writeln('Warning! Not implemented opcode, pass1: ', opcode);
         end;
@@ -955,6 +957,8 @@ implementation
                     internalerror(2021092011);
                 end;
             end;
+          a_end_function:
+            ;
           else
             Writeln('Warning! Not implemented opcode, pass2: ', opcode);
         end;