diff --git a/src/glsl/builtin_functions.cpp b/src/glsl/builtin_functions.cpp
index 31f7489d18f..96358a7373d 100644
--- a/src/glsl/builtin_functions.cpp
+++ b/src/glsl/builtin_functions.cpp
@@ -580,6 +580,9 @@ builtin_builder::release()
 {
    ralloc_free(mem_ctx);
    mem_ctx = NULL;
+
+   ralloc_free(shader);
+   shader = NULL;
 }
 
 void