diff --git a/calibrate.py b/calibrate.py
index 8c51613..ff1f00f 100644
--- a/calibrate.py
+++ b/calibrate.py
@@ -91,8 +91,10 @@ def main():
     time[3] = int((1000 * cpr * cpc)/(cps[3] * 36))
     print(cps)
 
-    values_hex = "-".join([".".join([str(i) for i in v]) for v in values])
-    time_hex = "-".join([str(i) for i in time])
+    values_hex = "-".join(
+        [".".join([format(i, "x") for i in v]) for v in values]
+    )
+    time_hex = "-".join([format(i, "x") for i in time])
     print(f"{values_hex}_{time_hex}")