diff --git a/CHANGELOG b/CHANGELOG
index 977600d4..4f4f124d 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,7 +1,8 @@
 jc changelog
 
-20221117 v1.22.3
+20221118 v1.22.3
 - Fix `git-log` and `git-log-s` parsers for failure on empty author name
+- Update `os-prober` parser with split EFI partition fields
 - Fix several documentation typos
 
 20221107 v1.22.2
diff --git a/docs/parsers/os_prober.md b/docs/parsers/os_prober.md
index 92733454..9e9680e2 100644
--- a/docs/parsers/os_prober.md
+++ b/docs/parsers/os_prober.md
@@ -21,12 +21,15 @@ Usage (module):
 Schema:
 
     {
-      'partition':              string,
-      'name':                   string,
-      'short_name':             string,
-      'type':                   string
+      "partition":              string,
+      "efi_bootmgr":            string,  # [0]
+      "name":                   string,
+      "short_name":             string,
+      "type":                   string
     }
 
+    [0] only exists if an EFI boot manager is detected
+
 Examples:
 
     $ os-prober | jc --os-prober -p
@@ -60,4 +63,4 @@ Returns:
 ### Parser Information
 Compatibility:  linux
 
-Version 1.0 by Kelly Brazil (kellyjonbrazil@gmail.com)
+Version 1.1 by Kelly Brazil (kellyjonbrazil@gmail.com)
diff --git a/jc/parsers/os_prober.py b/jc/parsers/os_prober.py
index 0f6827ca..9e0a7051 100644
--- a/jc/parsers/os_prober.py
+++ b/jc/parsers/os_prober.py
@@ -16,12 +16,15 @@ Usage (module):
 Schema:
 
     {
-      'partition':              string,
-      'name':                   string,
-      'short_name':             string,
-      'type':                   string
+      "partition":              string,
+      "efi_bootmgr":            string,  # [0]
+      "name":                   string,
+      "short_name":             string,
+      "type":                   string
     }
 
+    [0] only exists if an EFI boot manager is detected
+
 Examples:
 
     $ os-prober | jc --os-prober -p
@@ -39,7 +42,7 @@ import jc.utils
 
 class info():
     """Provides parser metadata (version, author, etc.)"""
-    version = '1.0'
+    version = '1.1'
     description = '`os-prober` command parser'
     author = 'Kelly Brazil'
     author_email = 'kellyjonbrazil@gmail.com'
@@ -62,6 +65,12 @@ def _process(proc_data: JSONDictType) -> JSONDictType:
 
         Dictionary. Structured to conform to the schema.
     """
+    # check for EFI partition@boot-manager and split/add fields
+    if 'partition' in proc_data and '@' in proc_data['partition']:  # type: ignore
+        new_part, efi_bootmgr = proc_data['partition'].split('@')  # type: ignore
+        proc_data['partition'] = new_part
+        proc_data['efi_bootmgr'] = efi_bootmgr
+
     return proc_data
 
 
diff --git a/tests/test_os_prober.py b/tests/test_os_prober.py
index 499d2a32..508ee093 100644
--- a/tests/test_os_prober.py
+++ b/tests/test_os_prober.py
@@ -19,8 +19,8 @@ class MyTests(unittest.TestCase):
         """
         Test 'os_prober' 1
         """
-        self.assertEqual(parse(
-            '/dev/sda1:Windows 7 (loader):Windows:chain', quiet=True),
+        self.assertEqual(
+            parse('/dev/sda1:Windows 7 (loader):Windows:chain', quiet=True),
             {"partition":"/dev/sda1","name":"Windows 7 (loader)","short_name":"Windows","type":"chain"}
         )
 
@@ -28,8 +28,8 @@ class MyTests(unittest.TestCase):
         """
         Test 'os_prober' 2
         """
-        self.assertEqual(parse(
-            '/dev/sda1:Windows 10:Windows:chain', quiet=True),
+        self.assertEqual(
+            parse('/dev/sda1:Windows 10:Windows:chain', quiet=True),
             {"partition":"/dev/sda1","name":"Windows 10","short_name":"Windows","type":"chain"}
         )
 
@@ -37,8 +37,17 @@ class MyTests(unittest.TestCase):
         """
         Test 'os_prober' 3
         """
-        self.assertEqual(parse(
-            '/dev/sda1@/efi/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi', quiet=True),
+        self.assertEqual(
+            parse('/dev/sda1@/efi/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi', quiet=True),
+            {"partition":"/dev/sda1","efi_bootmgr":"/efi/Microsoft/Boot/bootmgfw.efi","name":"Windows Boot Manager","short_name":"Windows","type":"efi"}
+        )
+
+    def test_os_prober_3_raw(self):
+        """
+        Test 'os_prober' 3 with raw output
+        """
+        self.assertEqual(
+            parse('/dev/sda1@/efi/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi', quiet=True, raw=True),
             {"partition":"/dev/sda1@/efi/Microsoft/Boot/bootmgfw.efi","name":"Windows Boot Manager","short_name":"Windows","type":"efi"}
         )