diff --git a/pyard/__init__.py b/pyard/__init__.py
index cb7e264..60ff9e3 100644
--- a/pyard/__init__.py
+++ b/pyard/__init__.py
@@ -25,4 +25,4 @@
 from .pyard import ARD
 
 __author__ = """NMDP Bioinformatics"""
-__version__ = '0.0.21'
+__version__ = '0.0.22'
diff --git a/pyard/pyard.py b/pyard/pyard.py
index be23f42..cc23aee 100644
--- a/pyard/pyard.py
+++ b/pyard/pyard.py
@@ -392,11 +392,14 @@ def redux(self, allele: str, ars_type: str) -> str:
         :rtype: str
         """
 
-        # PERFORMANCE: precompiled regex
-        # dealing with leading 'HLA-'
+        # deal with leading 'HLA-'
         if self.HLA_regex.search(allele):
             hla, allele_name = allele.split("-")
-            return "-".join(["HLA", self.redux(allele_name, ars_type)])
+            redux_allele = self.redux(allele_name, ars_type)
+            if redux_allele:
+                return "HLA-" + redux_allele
+            else:
+                return redux_allele
 
         # Alleles ending with P or G are valid
         if allele.endswith(('P', 'G')):
diff --git a/setup.cfg b/setup.cfg
index be5a281..4152a3f 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.0.21
+current_version = 0.0.22
 commit = True
 tag = True
 
diff --git a/setup.py b/setup.py
index 0671864..3ecf3a1 100644
--- a/setup.py
+++ b/setup.py
@@ -42,7 +42,7 @@
 
 setup(
     name='py-ard',
-    version='0.0.21',
+    version='0.0.22',
     description="ARD reduction for HLA with python",
     long_description=readme + '\n\n' + history,
     author="CIBMTR",
diff --git a/tests/test_pyard.py b/tests/test_pyard.py
index 5b665fa..f2c707b 100644
--- a/tests/test_pyard.py
+++ b/tests/test_pyard.py
@@ -76,3 +76,5 @@ def test_redux_gl(self):
 
     def test_mac_G(self):
         self.assertEqual(self.ard.redux("A*01:01:01", 'G'), "A*01:01:01G")
+        self.assertEqual(self.ard.redux_gl("HLA-A*01:AB", "G"), "HLA-A*01:01:01G/HLA-A*01:02")
+        self.assertEqual(self.ard.redux("HLA-A*01:AB", "G"), "")