diff --git a/src/mesa/shader/slang/slang_compile_operation.h b/src/mesa/shader/slang/slang_compile_operation.h
index 58f1edeed85..1f15c198963 100644
--- a/src/mesa/shader/slang/slang_compile_operation.h
+++ b/src/mesa/shader/slang/slang_compile_operation.h
@@ -127,7 +127,6 @@ typedef struct slang_operation_
     * indicate such.  num_children indicates number of elements.
     */
    GLboolean array_constructor;
-   double x;
 } slang_operation;