diff --git a/src/sonic-yang-models/tests/yang_model_tests/tests/kdump.json b/src/sonic-yang-models/tests/yang_model_tests/tests/kdump.json
index 29f0261335..579a16985e 100644
--- a/src/sonic-yang-models/tests/yang_model_tests/tests/kdump.json
+++ b/src/sonic-yang-models/tests/yang_model_tests/tests/kdump.json
@@ -8,6 +8,9 @@
     "KDUMP_WITH_VALID_VALUES_3": {
         "desc": "Configuring the kdump with valid values."
     },
+    "KDUMP_WITH_VALID_VALUES_4": {
+        "desc": "Configuring the kdump with valid values."
+    },
     "KDUMP_WITH_INVALID_NUM_DUMPS": {
         "desc": "Configuring kdump config with a invalid number of allowed kdumps.",
         "eStr": ["pattern", "does not satisfy"]
diff --git a/src/sonic-yang-models/tests/yang_model_tests/tests_config/kdump.json b/src/sonic-yang-models/tests/yang_model_tests/tests_config/kdump.json
index fe31148f50..50525babbc 100644
--- a/src/sonic-yang-models/tests/yang_model_tests/tests_config/kdump.json
+++ b/src/sonic-yang-models/tests/yang_model_tests/tests_config/kdump.json
@@ -32,6 +32,21 @@
             }
         }
     },
+    "KDUMP_WITH_VALID_VALUES_4": {
+        "sonic-kdump:sonic-kdump": {
+            "sonic-kdump:KDUMP": {
+                "config": {
+                    "enabled": "true",
+                    "num_dumps": "3",
+                    "memory": "512-4G:37M,4G-8G:41M,8G-:59M",
+                    "remote": "true",
+                    "ssh_string" : "ali@192.168.0.188",
+                    "ssh_path":  "/home/ali/.ssh/id_rsa"
+                }
+            }
+        }
+    },
+
     "KDUMP_WITH_INVALID_NUM_DUMPS": {
         "sonic-kdump:sonic-kdump": {
             "sonic-kdump:KDUMP": {
diff --git a/src/sonic-yang-models/yang-models/sonic-kdump.yang b/src/sonic-yang-models/yang-models/sonic-kdump.yang
index 364ccdc1a2..42cb307d41 100644
--- a/src/sonic-yang-models/yang-models/sonic-kdump.yang
+++ b/src/sonic-yang-models/yang-models/sonic-kdump.yang
@@ -33,7 +33,7 @@ module sonic-kdump {
 
                 leaf memory {
                     type string {
-                        pattern "(((([0-9]+[MG])?(-([0-9]+[MG])?):)?[0-9]+[MG],?)+)";
+                        pattern "(((([0-9]+[MG]?)?(-([0-9]+[MG])?):)?[0-9]+[MG],?)+)";
                     }
                     description
                         "Memory reserved for loading the crash handler kernel. The amount