diff --git a/src/error.rs b/src/error.rs
index 027003e..68efd05 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -38,7 +38,6 @@ enum SassErrorKind {
         loc: SpanLoc,
     },
     IoError(io::Error),
-    FmtError(fmt::Error),
     FromUtf8Error(String),
 }
 
@@ -84,14 +83,6 @@ impl From<io::Error> for SassError {
     }
 }
 
-impl From<std::fmt::Error> for SassError {
-    fn from(error: std::fmt::Error) -> Self {
-        SassError {
-            kind: SassErrorKind::FmtError(error),
-        }
-    }
-}
-
 impl From<FromUtf8Error> for SassError {
     #[inline]
     fn from(error: FromUtf8Error) -> Self {