diff --git a/docs/usage.rst b/docs/usage.rst
index 353a532..cf65710 100644
--- a/docs/usage.rst
+++ b/docs/usage.rst
@@ -55,6 +55,7 @@ We can also do something like this :
 
 
 
+But please do note that `resvg` first looks for *svg_string* and if that is empty then it looks for *svg_path*
 
 
 For extra parameters refer to :doc:`resvg <../resvg>` 
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