diff --git a/changelog/undistributed/changelog_showbgpneighbors b/changelog/undistributed/changelog_showbgpneighbors
new file mode 100644
index 0000000000..96fa24aaaf
--- /dev/null
+++ b/changelog/undistributed/changelog_showbgpneighbors
@@ -0,0 +1,7 @@
+--------------------------------------------------------------------------------
+                                Update
+--------------------------------------------------------------------------------
+* IOSXE
+    * Modified ShowBgpNeighborsReceivedRoutesSuperParser() parser
+        * Updated regex to make the CIDR notation optional
+
diff --git a/src/genie/libs/parser/iosxe/show_bgp.py b/src/genie/libs/parser/iosxe/show_bgp.py
index e239937d4d..23badb0ab1 100755
--- a/src/genie/libs/parser/iosxe/show_bgp.py
+++ b/src/genie/libs/parser/iosxe/show_bgp.py
@@ -5431,11 +5431,11 @@ def cli(self, neighbor, address_family='', output=None):
         p3_2 = re.compile(r'^\s*(?P<status_codes>(s|x|S|d|h|\*|\>|\s)+)'
                             '(?P<path_type>(i|e|c|l|a|r|I))?(\s)?'
                             '(?P<prefix>(([0-9]+[\.][0-9]+[\.][0-9]+'
-                            '[\.][0-9]+[\/][0-9]+)|([a-zA-Z0-9]+[\:]'
+                            '[\.][0-9]+(?:[\/][0-9]+)?)|([a-zA-Z0-9]+[\:]'
                             '[a-zA-Z0-9]+[\:][a-zA-Z0-9]+[\:]'
                             '[a-zA-Z0-9]+[\:][\:][\/][0-9]+)|'
                             '([a-zA-Z0-9]+[\:][a-zA-Z0-9]+[\:]'
-                            '[a-zA-Z0-9]+[\:][\:][\/][0-9]+)))'
+                            '[a-zA-Z0-9]+[\:][\:](?:[\/][0-9]+)?)))'
                             ' +(?P<next_hop>[a-zA-Z0-9\.\:]+)'
                             ' +(?P<numbers>[a-zA-Z0-9\s\(\)\{\}]+)'
                             ' +(?P<origin_codes>(i|e|\?|\&|\|))$')