diff --git a/pipreqs/pipreqs.py b/pipreqs/pipreqs.py
index <HASH>..<HASH> 100755
--- a/pipreqs/pipreqs.py
+++ b/pipreqs/pipreqs.py
@@ -4,11 +4,13 @@
 
 Usage:
     pipreqs [options] <path>
-
 Options:
     --use-local           Use ONLY local package info instead of querying PyPI
     --pypi-server         Use custom PyPi server
-    --proxy               Use Proxy, parameter will be passed to requests library
+    --proxy               Use Proxy, parameter will be passed to requests library. You can also just set the
+                          environments parameter in your terminal:
+                          $ export HTTP_PROXY="http://10.10.1.10:3128"
+                          $ export HTTPS_PROXY="http://10.10.1.10:1080"
     --debug               Print debug information
     --encoding <charset>  Use encoding parameter for file open
     --savepath <file>     Save the list of requirements in the given file
fix(pipreqs.py): clarify about proxy environment variables