diff --git a/src/rvprof_internal.h b/src/rvprof_internal.h
index 8fd13c6..3703f2d 100644
--- a/src/rvprof_internal.h
+++ b/src/rvprof_internal.h
@@ -179,11 +179,6 @@ char* rvprof_utils_get_program_name(void);
 char* rvprof_utils_generate_output_filename(void);
 int rvprof_utils_is_main_function(const char* func_name);
 
-// function stats
-int rvprof_stats_find_or_create_function(const char* name, const char* caller);
-int rvprof_stats_get_or_create_stack_id(void);
-void rvprof_stats_add_stack_id_to_function(int func_id, int stack_id);
-void rvprof_stats_add_caller_to_function(int func_id, const char* caller);
 
 // context management
 void rvprof_context_cleanup(void);