diff --git a/src/glsl/glsl_parser_extras.cpp b/src/glsl/glsl_parser_extras.cpp
index 1d16ef55f57..2e17c4c3372 100644
--- a/src/glsl/glsl_parser_extras.cpp
+++ b/src/glsl/glsl_parser_extras.cpp
@@ -484,6 +484,7 @@ ast_declarator_list::print(void) const
 ast_declarator_list::ast_declarator_list(ast_fully_specified_type *type)
 {
    this->type = type;
+   this->invariant = false;
 }
 
 void