diff --git a/docs/further.md b/docs/further.md
index bbf8b0f..516ab96 100644
--- a/docs/further.md
+++ b/docs/further.md
@@ -92,7 +92,7 @@ jobs: 30
 executor: htcondor
 configfile: my_config.yaml
 shared-fs-usage: none
-htcondor-job-dir: /path/to/MyHTCondorWorkflow/logs
+htcondor-jobdir: /path/to/MyHTCondorWorkflow/logs
 default-resources:
   job_wrapper: "wrapper.sh"
   container_image: "runtime_container.sif"
diff --git a/snakemake_executor_plugin_htcondor/__init__.py b/snakemake_executor_plugin_htcondor/__init__.py
index a9b75fb..4a31837 100644
--- a/snakemake_executor_plugin_htcondor/__init__.py
+++ b/snakemake_executor_plugin_htcondor/__init__.py
@@ -212,12 +212,17 @@ def run_job(self, job: JobExecutorInterface):
         # Name the jobs in the queue something that tells us what the job is
         submit_dict["batch_name"] = f"{job.name}-{job.jobid}"
 
+        
         # Check any custom classads
         for key in job.resources.keys():
             if key.startswith("classad_"):
-                classad_key = key.removeprefix("classad_") + "+"
-                submit_dict[classad_key] = job.resources.get(key)
-
+                classad_key =  "+" + key.removeprefix("classad_")
+                value = job.resources.get(key)
+                # If the value is a string, HTCondor requires it to be quoted.
+                if isinstance(value, str):
+                    submit_dict[classad_key] = f'"{value}"'
+                else:
+                    submit_dict[classad_key] = value
         # HTCondor submit description
         self.logger.debug(f"HTCondor submit subscription: {submit_dict}")
         submit_description = htcondor.Submit(submit_dict)