diff --git a/zigzag/classes/hardware/architecture/get_cacti_cost.py b/zigzag/classes/hardware/architecture/get_cacti_cost.py
index 95f567f..2c36991 100644
--- a/zigzag/classes/hardware/architecture/get_cacti_cost.py
+++ b/zigzag/classes/hardware/architecture/get_cacti_cost.py
@@ -449,6 +449,7 @@ def get_cacti_cost(cacti_path, tech_node, mem_type, mem_size_in_byte, bw, hd_has
         mem_size_in_byte_adjust = mem_size_in_byte
 
     file_path = './self_gen' # location for input file (cache.cfg) and output file (cache.cfg.out)
+    os.makedirs(file_path, exist_ok=True)
 
     # clear target folder
     # if system == 'Linux':
@@ -552,4 +553,4 @@ def get_w_cost_per_weight_from_cacti(cacti_path, tech_param, hd_param, dimension
         rows = mem_size*8/bw
         access_time, area, r_cost, w_cost = get_cacti_cost(cacti_path = '../../cacti/cacti_master', tech_node = 0.028, mem_type = 'sram', mem_size_in_byte = mem_size, bw = bw)
         print(f'access time (ns): {access_time}, area (mm2): {area}, r_cost (pJ)/bit: {r_cost*1000/bw}, w_cost (pJ)/bit: {w_cost*1000/bw}')
-    exit()
\ No newline at end of file
+    exit()