diff --git a/deon-unix/functions/functions.h b/deon-unix/functions/functions.h
index 5e2a907..9ec7406 100644
--- a/deon-unix/functions/functions.h
+++ b/deon-unix/functions/functions.h
@@ -4,8 +4,8 @@
 #include "../linked_list/linked_list.h"
 #include "../linked_list/linked_list.c"
 
-node_info *create_function(char *p_name,  node_info *p_stmts);
-node_info *create_function_call(char *p_name);
-node_info *create_compound_statement(node_info *new_statement_list, node_info *statement_head);
-node_info* add_to_compound_statement(node_info* new_statement, node_info* statement_head);
+static node_info *create_function(char *p_name,  node_info *p_stmts);
+static node_info *create_function_call(char *p_name);
+static node_info *create_compound_statement(node_info *new_statement_list, node_info *statement_head);
+static node_info* add_to_compound_statement(node_info* new_statement, node_info* statement_head);
 #endif
\ No newline at end of file