1 files changed, 1 insertions, 1 deletions
diff --git a/src/glsl/ir_reader.cpp b/src/glsl/ir_reader.cpp
index 04b982974e1..a9cbf8ea944 100644
--- a/src/glsl/ir_reader.cpp
+++ b/src/glsl/ir_reader.cpp
@@ -218,7 +218,6 @@ read_function(_mesa_glsl_parse_state *st, s_list *list, bool skip_body)
    ir_function *f = st->symbols->get_function(name->value());
    if (f == NULL) {
       f = new(ctx) ir_function(name->value());
-      f->is_builtin = true;
       added = st->symbols->add_function(f->name, f);
       assert(added);
    }
@@ -291,6 +290,7 @@ read_function_sig(_mesa_glsl_parse_state *st, ir_function *f, s_list *list,
    if (sig == NULL && skip_body) {
       /* If scanning for prototypes, generate a new signature. */
       sig = new(ctx) ir_function_signature(return_type);
+      sig->is_builtin = true;
       f->add_signature(sig);
    } else if (sig != NULL) {
       const char *badvar = sig->qualifiers_match(&hir_parameters);