diff --git a/libs/vkd3d-shader/hlsl.y b/libs/vkd3d-shader/hlsl.y
index 866602179..bbfe99a3d 100644
--- a/libs/vkd3d-shader/hlsl.y
+++ b/libs/vkd3d-shader/hlsl.y
@@ -6987,6 +6987,9 @@ buffer_type:
 declaration_statement_list:
       %empty
     | declaration_statement_list declaration_statement
+        {
+            destroy_block($2);
+        }
 
 preproc_directive:
       PRE_LINE STRING