diff --git a/modules/swagger-parser/src/main/java/io/swagger/parser/ResolverCache.java b/modules/swagger-parser/src/main/java/io/swagger/parser/ResolverCache.java
index fc4dab93c5..19a05aabbc 100644
--- a/modules/swagger-parser/src/main/java/io/swagger/parser/ResolverCache.java
+++ b/modules/swagger-parser/src/main/java/io/swagger/parser/ResolverCache.java
@@ -28,6 +28,7 @@
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -58,7 +59,7 @@ public class ResolverCache {
     /*
     a map that stores original external references, and their associated renamed references
      */
-    private Map<String, String> renameCache = new HashMap<>();
+    private Map<String, String> renameCache = new ConcurrentHashMap<>();
 
     public ResolverCache(Swagger swagger, List<AuthorizationValue> auths, String parentFileLocation) {
         this.swagger = swagger;
diff --git a/modules/swagger-parser/src/main/java/io/swagger/parser/processors/ExternalRefProcessor.java b/modules/swagger-parser/src/main/java/io/swagger/parser/processors/ExternalRefProcessor.java
index 25c6effbd9..8d0f1fa68f 100644
--- a/modules/swagger-parser/src/main/java/io/swagger/parser/processors/ExternalRefProcessor.java
+++ b/modules/swagger-parser/src/main/java/io/swagger/parser/processors/ExternalRefProcessor.java
@@ -208,8 +208,25 @@ private void processDiscriminator(String discriminator, Map<String, Property> pr
                             processRefProperty(new RefProperty(RefType.DEFINITION.getInternalPrefix()+name), file);
                         }
                     }
-
-
+                }else if (prop.getValue() instanceof RefProperty) {
+                    String ref = ((RefProperty) prop.getValue()).getSimpleRef();
+                    Map<String, String> renameCache = cache.getRenameCache();
+                    for (String key : renameCache.keySet()) {
+                        String value = renameCache.get(key);
+                        if (value.equals(ref)) {
+                            Object resolved = cache.getResolutionCache().get(key);
+                            if(resolved != null) {
+                                if (resolved instanceof ModelImpl) {
+                                    ModelImpl schema = (ModelImpl) resolved;
+                                    if (schema.getEnum() != null) {
+                                        for (String name : schema.getEnum()) {
+                                            processRefProperty(new RefProperty(RefType.DEFINITION.getInternalPrefix() + name), file);
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
                 }
             }
         }
diff --git a/modules/swagger-parser/src/test/java/io/swagger/parser/SwaggerParserTest.java b/modules/swagger-parser/src/test/java/io/swagger/parser/SwaggerParserTest.java
index 09ab88d296..7c5ef0d0cd 100644
--- a/modules/swagger-parser/src/test/java/io/swagger/parser/SwaggerParserTest.java
+++ b/modules/swagger-parser/src/test/java/io/swagger/parser/SwaggerParserTest.java
@@ -82,6 +82,16 @@ public void testIssueDefinitionWithDots() {
         assertNotNull(swagger);
     }
 
+    @Test
+    public void testIssue995() {
+        Swagger swagger = new SwaggerParser().read("issue-995/digitalExp-Product-Unresolved.yaml");
+        assertNotNull(swagger);
+        assertTrue(swagger.getDefinitions().size() == 6);
+        assertNotNull(swagger.getDefinitions().get("MobileProduct"));
+        assertNotNull(swagger.getDefinitions().get("FixedVoiceProduct"));
+        assertNotNull(swagger.getDefinitions().get("InternetProduct"));
+    }
+
     @Test
     public void testIssue927() {
         Swagger swagger = new SwaggerParser().read("issue-927/issue-927.yaml");
diff --git a/modules/swagger-parser/src/test/resources/issue-995/digitalExp-CommonDefinitionDomain.yaml b/modules/swagger-parser/src/test/resources/issue-995/digitalExp-CommonDefinitionDomain.yaml
new file mode 100644
index 0000000000..395a117838
--- /dev/null
+++ b/modules/swagger-parser/src/test/resources/issue-995/digitalExp-CommonDefinitionDomain.yaml
@@ -0,0 +1,112 @@
+info:
+  description: "This is a common Domain"
+  version: "1.0"
+  title: Common Domain
+
+responses:
+
+  400-BadRequest:
+    x-dox-Since: v10.2
+    description: Bad Request
+    schema:
+      $ref: "#/definitions/ErrorResponse"
+
+definitions:
+  ErrorResponse:
+    x-dox-Since: v10.2
+    type: object
+    description: |
+      Response containing descriptive error text, error code
+    required:
+      - code
+      - message
+    properties:
+      code:
+        description: |
+          The code associated with the error
+        readOnly: true
+        type: integer
+      message:
+        description: |
+          The message associated with the error
+        readOnly: true
+        type: string
+
+  ChannelType:
+    type: string
+    enum:
+      - selfService
+      - retail
+      - callCenter
+
+  Product:
+    x-dox-Since: '10.2'
+    description: |
+      The respesentation of the product
+    type: object
+    discriminator: productType
+    required:
+      - productType
+    x-dox-discriminator-name: NAME
+    x-dox-discriminator-type:
+      - MobileProduct
+      - InternetProduct
+      - FixedVoiceProduct
+    properties:
+      id:
+        type: string
+      status:
+        type: string
+      name:
+        type: string
+      productType:
+        $ref: '#/definitions/ProductType'
+
+  ProductType:
+    x-dox-Since: '10.2'
+    description: |
+      The different type of products
+    enum:
+      - MobileProduct
+      - FixedVoiceProduct
+      - InternetProduct
+
+  MobileProduct:
+    x-dox-Since: 10.2
+    description: |
+      The instance of the mobile product being added.
+    type: object
+    allOf:
+      - $ref: "#/definitions/Product"
+      - type: object
+        properties:
+          sim:
+            type: string
+          phoneNumber:
+            type: string
+
+  FixedVoiceProduct:
+    x-dox-Since: 10.2
+    description: |
+      The instance of the fixed voice product being added.
+    type: object
+    allOf:
+      - $ref: "#/definitions/Product"
+      - type: object
+        properties:
+          phoneNumber:
+            type: string
+
+  InternetProduct:
+    x-dox-Since: 10.2
+    description: |
+      The instance of the internet product being added.
+    type: object
+    allOf:
+      - $ref: "#/definitions/Product"
+      - type: object
+        properties:
+          userName:
+            type: string
+          speed:
+            type: string
\ No newline at end of file
diff --git a/modules/swagger-parser/src/test/resources/issue-995/digitalExp-Product-Unresolved.yaml b/modules/swagger-parser/src/test/resources/issue-995/digitalExp-Product-Unresolved.yaml
new file mode 100644
index 0000000000..79ced47d3b
--- /dev/null
+++ b/modules/swagger-parser/src/test/resources/issue-995/digitalExp-Product-Unresolved.yaml
@@ -0,0 +1,32 @@
+swagger: '2.0'
+info:
+  version: '1.0'
+  title: 'Product Operation'
+  description: 'Product Operation'
+
+
+basePath: /commerce
+
+consumes:
+  - application/json
+produces:
+  - application/json
+
+paths:
+
+  /v1/product/{productId}:
+    get:
+      summary: Get the product
+      description: Get the product
+      parameters:
+        - name: productId
+          in: path
+          required: true
+          type: string
+      responses:
+        200:
+          description: OK
+          schema:
+            $ref: 'digitalExp-CommonDefinitionDomain.yaml#/definitions/Product'
+        400:
+          $ref: 'digitalExp-CommonDefinitionDomain.yaml#/responses/400-BadRequest'
\ No newline at end of file