diff --git a/Cargo.toml b/Cargo.toml
index d75deb8d4e..ffa80143e0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,6 +11,7 @@ description = """
 An implementation of regular expressions for Rust. This implementation uses
 finite automata and guarantees linear time matching on all inputs.
 """
+categories = ["text-processing"]
 
 [dependencies]
 # For very fast prefix literal matching.