diff --git a/src/core/plugins/spec/selectors.js b/src/core/plugins/spec/selectors.js
index f8580156333..35842823ba1 100644
--- a/src/core/plugins/spec/selectors.js
+++ b/src/core/plugins/spec/selectors.js
@@ -546,7 +546,11 @@ export const getOAS3RequiredRequestBodyContentType = (state, pathMethod) => {
   if (requestBody.getIn(["required"])) {
     requiredObj.requestBody = requestBody.getIn(["required"])
   }
-  requestBody.getIn(["content"]).entrySeq().forEach((contentType) => { // e.g application/json
+  const requestBodyContent = requestBody.getIn(["content"])
+  if (!requestBodyContent) {
+    return requiredObj
+  }
+  requestBodyContent.entrySeq().forEach((contentType) => { // e.g application/json
     const key = contentType[0]
     if (contentType[1].getIn(["schema", "required"])) {
       const val = contentType[1].getIn(["schema", "required"]).toJS()
diff --git a/test/unit/core/plugins/spec/selectors.js b/test/unit/core/plugins/spec/selectors.js
index 53df1c71d8a..672c87baca0 100644
--- a/test/unit/core/plugins/spec/selectors.js
+++ b/test/unit/core/plugins/spec/selectors.js
@@ -15,6 +15,7 @@ import {
   consumesOptionsFor,
   taggedOperations,
   isMediaTypeSchemaPropertiesEqual,
+  getOAS3RequiredRequestBodyContentType,
   validationErrors
 } from "core/plugins/spec/selectors"
 
@@ -1239,6 +1240,83 @@ describe("taggedOperations", function () {
     expect(result.toJS()).toEqual([])
   })
 })
+describe("getOAS3RequiredRequestBodyContentType", () => {
+  const pathMethod = ["/test", "post"]
+
+  it("should return default requiredObj when requestBody is missing", () => {
+    const state = fromJS({
+      resolvedSubtrees: {
+        paths: {
+          "/test": {
+            post: {}
+          }
+        }
+      }
+    })
+
+    const result = getOAS3RequiredRequestBodyContentType(state, pathMethod)
+
+    expect(result).toEqual({
+      requestBody: false,
+      requestContentType: {}
+    })
+  })
+
+  it("should not crash and return requiredObj when requestBody has no content", () => {
+    const state = fromJS({
+      resolvedSubtrees: {
+        paths: {
+          "/test": {
+            post: {
+              requestBody: {
+                required: true
+              }
+            }
+          }
+        }
+      }
+    })
+
+    const result = getOAS3RequiredRequestBodyContentType(state, pathMethod)
+
+    expect(result).toEqual({
+      requestBody: true,
+      requestContentType: {}
+    })
+  })
+
+  it("should collect required schema fields per content type when content is present", () => {
+    const state = fromJS({
+      resolvedSubtrees: {
+        paths: {
+          "/test": {
+            post: {
+              requestBody: {
+                required: true,
+                content: {
+                  "application/json": {
+                    schema: {
+                      required: ["name", "email"]
+                    }
+                  }
+                }
+              }
+            }
+          }
+        }
+      }
+    })
+
+    const result = getOAS3RequiredRequestBodyContentType(state, pathMethod)
+
+    expect(result).toEqual({
+      requestBody: true,
+      requestContentType: {
+        "application/json": ["name", "email"]
+      }
+    })
+  })
+})
 describe("isMediaTypeSchemaPropertiesEqual", () => {
   const stateSingleMediaType = fromJS({
     resolvedSubtrees: {