diff --git a/src/printing.jl b/src/printing.jl
index f72cfa0088151b383628f68901aa4aed5b69121d..ec6b7f4a4c16503cd8e80341345d031128a281e9 100644
--- a/src/printing.jl
+++ b/src/printing.jl
@@ -52,7 +52,7 @@ function Base.show(io::IO, block::AbstractBlock)
                 continue
             end
             print(io, "$(nameof(fn))=$(numeric_value), ")
-        catch
+        catch e
             continue
         end
     end