diff --git a/pkg/kube_resource/generator/generator.go b/pkg/kube_resource/generator/generator.go
index 0c7e192..9a46f4e 100644
--- a/pkg/kube_resource/generator/generator.go
+++ b/pkg/kube_resource/generator/generator.go
@@ -161,13 +161,8 @@ func splitDocuments(s string) ([]string, error) {
 				return nil, fmt.Errorf("invalid document separator: %s", strings.TrimSpace(separator))
 			}
 			// Remove all whitespace
-			result := strings.Map(func(r rune) rune {
-				if unicode.IsSpace(r) {
-					return -1
-				}
-				return r
-			}, s[prev:loc[0]])
-			if len(result) > 0 {
+			result := s[prev:loc[0]]
+			if len(result) > 0 && !isAllWhitespace(result) {
 				docs = append(docs, result)
 			}
 			prev = loc[1]
@@ -177,6 +172,15 @@ func splitDocuments(s string) ([]string, error) {
 	return docs, nil
 }
 
+func isAllWhitespace(str string) bool {
+	for _, r := range str {
+		if !unicode.IsSpace(r) {
+			return false
+		}
+	}
+	return true
+}
+
 // generate swagger model based on crd
 func generate(crdYaml string) (*spec.Swagger, error) {
 	crdObj, _, err := scheme.Codecs.UniversalDeserializer().
diff --git a/pkg/kube_resource/generator/generator_test.go b/pkg/kube_resource/generator/generator_test.go
index 4864a2c..4783a27 100644
--- a/pkg/kube_resource/generator/generator_test.go
+++ b/pkg/kube_resource/generator/generator_test.go
@@ -631,3 +631,115 @@ func TestSplitDocuments(t *testing.T) {
 		t.Errorf("splitDocuments failed. expected 2, got %d", len(files))
 	}
 }
+
+func TestSplitYamlStreamDocuments(t *testing.T) {
+	crds := `
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  name: foo.example.com
+spec:
+  group: example.com
+  versions:
+    - name: v1
+      served: true
+      storage: true
+      schema:
+        openAPIV3Schema:
+          type: object
+          properties:
+            spec:
+              type: object
+              properties:
+                field1:
+                  type: string
+  scope: Namespaced
+  names:
+    plural: foo
+    singular: foo
+    kind: Foo
+---
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  name: bar.example.com
+spec:
+  group: example.com
+  versions:
+    - name: v1
+      served: true
+      storage: true
+      schema:
+        openAPIV3Schema:
+          type: object
+          properties:
+            spec:
+              type: object
+              properties:
+                field2:
+                  type: string
+  scope: Namespaced
+  names:
+    plural: bar
+    singular: bar
+    kind: Bar
+`
+	files, _ := splitDocuments(crds)
+	if len(files) != 2 {
+		t.Errorf("splitDocuments failed. expected 2, got %d", len(files))
+	}
+	if files[0] != `
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  name: foo.example.com
+spec:
+  group: example.com
+  versions:
+    - name: v1
+      served: true
+      storage: true
+      schema:
+        openAPIV3Schema:
+          type: object
+          properties:
+            spec:
+              type: object
+              properties:
+                field1:
+                  type: string
+  scope: Namespaced
+  names:
+    plural: foo
+    singular: foo
+    kind: Foo` {
+		panic(files[0])
+	}
+	if files[1] != `apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  name: bar.example.com
+spec:
+  group: example.com
+  versions:
+    - name: v1
+      served: true
+      storage: true
+      schema:
+        openAPIV3Schema:
+          type: object
+          properties:
+            spec:
+              type: object
+              properties:
+                field2:
+                  type: string
+  scope: Namespaced
+  names:
+    plural: bar
+    singular: bar
+    kind: Bar
+` {
+		panic(files[1])
+	}
+}