diff --git a/ablescript/src/error.rs b/ablescript/src/error.rs
index 00b9033..855b213 100644
--- a/ablescript/src/error.rs
+++ b/ablescript/src/error.rs
@@ -17,7 +17,7 @@ pub enum ErrorKind {
     BfInterpretError(InterpretError),
     MismatchedArgumentError,
     MissingLhs,
-    IOError(io::Error),
+    IoError(io::Error),
 }
 
 impl Error {
@@ -56,13 +56,13 @@ impl Display for ErrorKind {
             // TODO: give concrete numbers here.
             ErrorKind::MismatchedArgumentError => write!(f, "wrong number of function arguments"),
             ErrorKind::MissingLhs => write!(f, "missing expression before binary operation"),
-            ErrorKind::IOError(err) => write!(f, "I/O error: {}", err),
+            ErrorKind::IoError(err) => write!(f, "I/O error: {}", err),
         }
     }
 }
 
 impl From<io::Error> for ErrorKind {
     fn from(e: io::Error) -> Self {
-        Self::IOError(e)
+        Self::IoError(e)
     }
 }