diff --git a/src/rvprof_memory.c b/src/rvprof_memory.c
index 0a52957..5ff015a 100644
--- a/src/rvprof_memory.c
+++ b/src/rvprof_memory.c
@@ -99,8 +99,18 @@ static void cleanup_function_stats(void* item){
     }
 }
 
+static void cleanup_stack_info(void* item){
+    stack_info_t* stack = (stack_info_t*)item;
+    if (stack->stack_path){
+        rvprof_free(stack->stack_path, strlen(stack->stack_path)+1);
+        stack->stack_path = NULL;
+    }
+}
+
 // acutal dynamic array implementations:
 IMPLEMENT_DYNAMIC_ARRAY(region_t, region, INITIAL_REGIONS, cleanup_region_entry)
 IMPLEMENT_DYNAMIC_ARRAY(symbol_entry_t, symbol, INITIAL_SYMBOLS, cleanup_symbol_entry)
 IMPLEMENT_DYNAMIC_ARRAY(function_stats_t, function_stats, INITIAL_FUNCTIONS, cleanup_function_stats)
+IMPLEMENT_DYNAMIC_ARRAY(stack_info_t, stack_info, INITIAL_STACKS, cleanup_stack_info)
+