diff --git a/src/tests/ocb-aes.cc b/src/tests/ocb-aes.cc
index f6c817a..03ad97c 100644
--- a/src/tests/ocb-aes.cc
+++ b/src/tests/ocb-aes.cc
@@ -536,6 +536,7 @@ static void test_iterative( void ) {
   if ( verbose ) {
     printf( "iterative PASSED\n\n" );
   }
+  scrap_ctx( *ctx_buf );
 }
 
 int main( int argc, char *argv[] )