diff --git a/src/bcgen_instructions.c b/src/bcgen_instructions.c
index 65136c95263e77fc93c9d63c53a180c13b4c43df..3079d4669fd18f712f5898c590788e633c51ce48 100644
--- a/src/bcgen_instructions.c
+++ b/src/bcgen_instructions.c
@@ -98,9 +98,13 @@ struct program *initialize_code(void) {
 	labels = NULL;
 	label_id = 0;
 	global_label_string_count = 0;
+	start_label=NULL;
 
 	module_n = 0;
 
+	used_ccalls_ptr=0;
+	requires_file_io_ptr=0;
+
 	pgrm = (struct program) {
 		0,
 		0,
@@ -5178,7 +5182,4 @@ void free_generated_program(void) {
 	free_program(&pgrm);
 	if (labels!=NULL)
 		free_label_node(labels);
-
-	/* This prevents overriding warning in case we generate multiple times in one run. */
-	start_label=NULL;
 }