diff --git a/README.md b/README.md
index 3f47c56..e0b8d30 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,13 @@
 Very simple tool to search by string or number value and get the JSON key from it.
 
 ## Usage
+`jsonsearch [-all] [-type=(string|number)] <match> [<file>|-]`
+
+- `-all` will search for all occurrences
+- `-type` will set the type to search for; defaults to string
+- `<match>` is the value to match against
+- `<file>|-` is either a relative file path or a dash, indicating to read from STDIN.
+
 ```sh
 # Search for the first occurrence of 'foo Bar'.
 jsonsearch "foo Bar" myfile.json