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-rw-r--r--src/sexp/display.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/sexp/display.rs b/src/sexp/display.rs
index 5d78e93..eff3904 100644
--- a/src/sexp/display.rs
+++ b/src/sexp/display.rs
@@ -29,6 +29,7 @@ impl fmt::Display for SLeaf {
Vector => "vector".to_string(),
Print => "print".to_string(),
Let => "let".to_string(),
+ Fun => "fn".to_string(),
Ty(t) => t.to_string(),
Arr => "->".to_string(),
Nil => "()".to_string(),