diff --git a/src/compiler/glsl/ast_to_hir.cpp b/src/compiler/glsl/ast_to_hir.cpp
index a07c0ecf953..f0a96c3e1e8 100644
--- a/src/compiler/glsl/ast_to_hir.cpp
+++ b/src/compiler/glsl/ast_to_hir.cpp
@@ -4500,7 +4500,7 @@ process_initializer(ir_variable *var, ast_declaration *decl,
       } else {
          if (var->type->is_numeric()) {
             /* Reduce cascading errors. */
-            var->constant_value = type->qualifier.flags.q.constant
+            rhs = var->constant_value = type->qualifier.flags.q.constant
                ? ir_constant::zero(state, var->type) : NULL;
          }
       }