diff --git a/src/rvprof_internal.h b/src/rvprof_internal.h
index e7c42e0..1174808 100644
--- a/src/rvprof_internal.h
+++ b/src/rvprof_internal.h
@@ -90,6 +90,14 @@ DECLARE_DYNAMIC_ARRAY(function_stats_t, function_stats);
 DECLARE_DYNAMIC_ARRAY(symbol_entry_t, symbol);
 DECLARE_DYNAMIC_ARRAY(stack_info_t, stack_info);
 
+// config structure
+typedef struct {
+    int enable_hooks;
+    int merge_regions;
+    char* output_filename;
+    char* program_name;
+} rvprof_config_t;
+
 #ifdef __cplusplus
 }
 #endif