diff --git a/AWS-IoT.md b/AWS-IoT.md
index 90b0756b..0f1985e4 100644
--- a/AWS-IoT.md
+++ b/AWS-IoT.md
@@ -304,7 +304,7 @@ Memory consumption (nominal):
 
 * BearSSL lib: 1424 bytes (or 1024 bytes for TLS alone)
 * BearSSL ClientContext: 3440 bytes
-* Buffers 1024/1024: 2528 bytes
+* Buffers (1024 bytes in + 1024 bytes out + overhead): 2528 bytes
 * **Total = 7.4k**
 
 Note: if you use USE_WEBSERVER, your impact is lowered by 2k since the Web log buffer is reduced from 4k to 2k. Overall when activating USE_WEBSERVER, you just see a memory impact of 5.4k.