diff --git a/nipype/pipeline/engine/nodes.py b/nipype/pipeline/engine/nodes.py
index 59fb2e6724..20fe360504 100644
--- a/nipype/pipeline/engine/nodes.py
+++ b/nipype/pipeline/engine/nodes.py
@@ -293,9 +293,12 @@ def output_dir(self):
         if self._hierarchy:
             outputdir = op.join(outputdir, *self._hierarchy.split("."))
         if self.parameterization:
-            params_str = ["{}".format(p) for p in self.parameterization]
-            if not str2bool(self.config["execution"]["parameterize_dirs"]):
-                params_str = [_parameterization_dir(p) for p in params_str]
+            maxlen = (
+                252 if str2bool(self.config["execution"]["parameterize_dirs"]) else 32
+            )
+            params_str = [
+                _parameterization_dir(str(p), maxlen) for p in self.parameterization
+            ]
             outputdir = op.join(outputdir, *params_str)
 
         self._output_dir = op.realpath(op.join(outputdir, self.name))
diff --git a/nipype/pipeline/engine/utils.py b/nipype/pipeline/engine/utils.py
index a1666b855a..b744849c57 100644
--- a/nipype/pipeline/engine/utils.py
+++ b/nipype/pipeline/engine/utils.py
@@ -51,14 +51,14 @@
 logger = logging.getLogger("nipype.workflow")
 
 
-def _parameterization_dir(param):
+def _parameterization_dir(param, maxlen):
     """
     Returns the directory name for the given parameterization string as follows:
-        - If the parameterization is longer than 32 characters, then
+        - If the parameterization is longer than maxlen characters, then
           return the SHA-1 hex digest.
         - Otherwise, return the parameterization unchanged.
     """
-    if len(param) > 32:
+    if len(param) > maxlen:
         return sha1(param.encode()).hexdigest()
     return param