diff --git a/transfer_service/tape_client.py b/transfer_service/tape_client.py
index 20c9dbbc2cc624228f950bb0c6deef25f9c9c358..37f0dec7043f980004087de7a50b1010413e4370 100644
--- a/transfer_service/tape_client.py
+++ b/transfer_service/tape_client.py
@@ -78,7 +78,7 @@ class TapeClient(object):
 
     def getHSMFilesystemList(self):
         """Returns a list containing all the available HSM filesystems."""
-        cmd = f"{self.DSMDF} -detail | grep \"HSM Filesystem\" | awk '{ print $3 }'"
+        cmd = f"{self.DSMDF} -detail | grep \"HSM Filesystem\" | awk '{{ print $3 }}'"
         try:
             stdin, stdout, stderr = self.client.exec_command(cmd)
         except Exception:
@@ -95,7 +95,7 @@ class TapeClient(object):
 
     def getHSMFilesystemFreeSpace(self, HSMFilesystem):
         "Returns the free space in bytes for a given HSM filesystem."
-        cmd = f"{self.DSMDF} -detail {HSMFilesystem} | grep "Free Size" | awk '{ print $3 }'"
+        cmd = f"{self.DSMDF} -detail {HSMFilesystem} | grep \"Free Size\" | awk '{{ print $3 }}'"
         try:
             stdin, stdout, stderr = self.client.exec_command(cmd)
         except Exception: