diff --git a/src/rvprof_internal.h b/src/rvprof_internal.h
index 9462e69..106ac2a 100644
--- a/src/rvprof_internal.h
+++ b/src/rvprof_internal.h
@@ -108,6 +108,7 @@ typedef struct{
 
     // dynamic arrays
     region_array_t regions;
+    function_stats_array_t functions;
     stack_info_array_t stacks;
     symbol_array_t symbols;