diff --git a/src/workflow/StreamlitUI.py b/src/workflow/StreamlitUI.py
index 2124f8fe..de266740 100644
--- a/src/workflow/StreamlitUI.py
+++ b/src/workflow/StreamlitUI.py
@@ -514,8 +514,9 @@ def input_TOPP(
                 if i == num_cols:
                     i = 0
                     cols = st.columns(num_cols)
-            except:
+            except Exception as e:
                 cols[i].error(f"Error in parameter **{p['name']}**.")
+                print("Error parsing \""+ p['name'] + "\": " + str(e))
 
     def input_python(
         self,