diff --git a/compiler/x86/agx86nsm.pas b/compiler/x86/agx86nsm.pas
index 53a908d523..ffce7acd0b 100644
--- a/compiler/x86/agx86nsm.pas
+++ b/compiler/x86/agx86nsm.pas
@@ -51,6 +51,7 @@ interface
         function double2str(d: double): string; override;
         function extended2str(e: extended): string; override;
       public
+        destructor Destroy;override;
         procedure WriteTree(p:TAsmList);override;
         procedure WriteAsmList;override;
         procedure WriteExternals;
@@ -145,6 +146,14 @@ interface
       end;
 
 
+    destructor TX86NasmAssembler.Destroy;
+      begin
+        FSectionsUsed.Free;
+        FSectionsInDGROUP.Free;
+        inherited Destroy;
+      end;
+
+
     function sizestr(s:topsize;dest:boolean):string;
       begin
         case s of