diff --git a/dns/rdtypes/ANY/SSHFP.py b/dns/rdtypes/ANY/SSHFP.py
index 4fd917c3..f80df339 100644
--- a/dns/rdtypes/ANY/SSHFP.py
+++ b/dns/rdtypes/ANY/SSHFP.py
@@ -43,7 +43,7 @@ def to_text(self, origin=None, relativize=True, **kw):
         return '%d %d %s' % (self.algorithm,
                              self.fp_type,
                              dns.rdata._hexify(self.fingerprint,
-                                               chunksize=128))
+                                               chunksize=kw.get('chunksize', 128)))
 
     @classmethod
     def from_text(cls, rdclass, rdtype, tok, origin=None, relativize=True,
diff --git a/dns/rdtypes/dsbase.py b/dns/rdtypes/dsbase.py
index 19e087c8..7dac981b 100644
--- a/dns/rdtypes/dsbase.py
+++ b/dns/rdtypes/dsbase.py
@@ -43,7 +43,7 @@ def to_text(self, origin=None, relativize=True, **kw):
         return '%d %d %d %s' % (self.key_tag, self.algorithm,
                                 self.digest_type,
                                 dns.rdata._hexify(self.digest,
-                                                  chunksize=128))
+                                                  chunksize=kw.get('chunksize', 128)))
 
     @classmethod
     def from_text(cls, rdclass, rdtype, tok, origin=None, relativize=True,
diff --git a/dns/rdtypes/tlsabase.py b/dns/rdtypes/tlsabase.py
index a9563da9..7cb7771b 100644
--- a/dns/rdtypes/tlsabase.py
+++ b/dns/rdtypes/tlsabase.py
@@ -45,7 +45,7 @@ def to_text(self, origin=None, relativize=True, **kw):
                                 self.selector,
                                 self.mtype,
                                 dns.rdata._hexify(self.cert,
-                                                  chunksize=128))
+                                                  chunksize=kw.get('chunksize', 128)))
 
     @classmethod
     def from_text(cls, rdclass, rdtype, tok, origin=None, relativize=True,