diff --git a/lib/galaxy/util/__init__.py b/lib/galaxy/util/__init__.py
index 1c2bbf19d9e..ce3104bd104 100644
--- a/lib/galaxy/util/__init__.py
+++ b/lib/galaxy/util/__init__.py
@@ -1015,7 +1015,7 @@ def roundify(amount, sfs=2):
         return amount[0:sfs] + '0' * (len(amount) - sfs)
 
 
-def unicodify(value, encoding=DEFAULT_ENCODING, error='replace', strip_null=False):
+def unicodify(value, encoding=DEFAULT_ENCODING, error='replace', strip_null=False, log_exception=True):
     """
     Returns a Unicode string or None.
 
@@ -1041,8 +1041,9 @@ def unicodify(value, encoding=DEFAULT_ENCODING, error='replace', strip_null=Fals
         if not isinstance(value, str):
             value = str(value, encoding, error)
     except Exception as e:
-        msg = "Value '{}' could not be coerced to Unicode: {}('{}')".format(repr(value), type(e).__name__, e)
-        log.exception(msg)
+        if log_exception:
+            msg = "Value '{}' could not be coerced to Unicode: {}('{}')".format(repr(value), type(e).__name__, e)
+            log.exception(msg)
         raise
     if strip_null:
         return value.replace('\0', '')
diff --git a/lib/galaxy/util/template.py b/lib/galaxy/util/template.py
index 037daf8e880..13cd2951fec 100644
--- a/lib/galaxy/util/template.py
+++ b/lib/galaxy/util/template.py
@@ -77,7 +77,7 @@ def fill_template(template_text,
         raise first_exception or e
     t = klass(searchList=[context])
     try:
-        return unicodify(t)
+        return unicodify(t, log_exception=False)
     except NotFound as e:
         if first_exception is None:
             first_exception = e