diff --git a/Cargo.toml b/Cargo.toml
index f8ff58b..efa323a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -27,4 +27,5 @@ name = "gdcm_rs"
 path = "src/lib.rs"
 
 [features]
+default = ["charls"]
 charls = []