diff --git a/tools/diff-processor/cmd/detect_missing_docs.go b/tools/diff-processor/cmd/detect_missing_docs.go
index 080bd77f8345..ed4fa7ce5a63 100644
--- a/tools/diff-processor/cmd/detect_missing_docs.go
+++ b/tools/diff-processor/cmd/detect_missing_docs.go
@@ -59,44 +59,16 @@ func (o *detectMissingDocsOptions) run(args []string) error {
 	if err != nil {
 		return err
 	}
-	resources := maps.Keys(detectedResources)
-	slices.Sort(resources)
-	resourceInfo := []detector.MissingDocDetails{}
-	for _, r := range resources {
-		details := detectedResources[r]
-		sort.Slice(details.Fields, func(i, j int) bool {
-			return details.Fields[i].Field < details.Fields[j].Field
-		})
-		resourceInfo = append(resourceInfo, detector.MissingDocDetails{
-			Name:     r,
-			FilePath: details.FilePath,
-			Fields:   details.Fields,
-		})
-	}
 
 	datasourceSchemaDiff := o.computeDatasourceSchemaDiff()
 	detectedDataSources, err := detector.DetectMissingDocsForDatasource(datasourceSchemaDiff, args[0])
 	if err != nil {
 		return err
 	}
-	dataSources := maps.Keys(detectedDataSources)
-	slices.Sort(dataSources)
-	dataSourceInfo := []detector.MissingDocDetails{}
-	for _, r := range resources {
-		details := detectedDataSources[r]
-		sort.Slice(details.Fields, func(i, j int) bool {
-			return details.Fields[i].Field < details.Fields[j].Field
-		})
-		dataSourceInfo = append(dataSourceInfo, detector.MissingDocDetails{
-			Name:     r,
-			FilePath: details.FilePath,
-			Fields:   details.Fields,
-		})
-	}
 
 	sum := MissingDocsSummary{
-		Resource:   resourceInfo,
-		DataSource: dataSourceInfo,
+		Resource:   sortMissingDocDetails(detectedResources),
+		DataSource: sortMissingDocDetails(detectedDataSources),
 	}
 
 	if err := json.NewEncoder(o.stdout).Encode(sum); err != nil {
@@ -105,3 +77,21 @@ func (o *detectMissingDocsOptions) run(args []string) error {
 
 	return nil
 }
+
+func sortMissingDocDetails(m map[string]detector.MissingDocDetails) []detector.MissingDocDetails {
+	itemNames := maps.Keys(m)
+	slices.Sort(itemNames)
+	arr := []detector.MissingDocDetails{}
+	for _, itemName := range itemNames {
+		details := m[itemName]
+		sort.Slice(details.Fields, func(i, j int) bool {
+			return details.Fields[i].Field < details.Fields[j].Field
+		})
+		arr = append(arr, detector.MissingDocDetails{
+			Name:     itemName,
+			FilePath: details.FilePath,
+			Fields:   details.Fields,
+		})
+	}
+	return arr
+}
diff --git a/tools/diff-processor/cmd/detect_missing_docs_test.go b/tools/diff-processor/cmd/detect_missing_docs_test.go
index 615ff3041b92..549bc95ed4d3 100644
--- a/tools/diff-processor/cmd/detect_missing_docs_test.go
+++ b/tools/diff-processor/cmd/detect_missing_docs_test.go
@@ -14,10 +14,12 @@ import (
 
 func TestDetectMissingDocs(t *testing.T) {
 	cases := []struct {
-		name           string
-		oldResourceMap map[string]*schema.Resource
-		newResourceMap map[string]*schema.Resource
-		want           MissingDocsSummary
+		name             string
+		oldResourceMap   map[string]*schema.Resource
+		newResourceMap   map[string]*schema.Resource
+		oldDataSourceMap map[string]*schema.Resource
+		newDataSourceMap map[string]*schema.Resource
+		want             MissingDocsSummary
 	}{
 		{
 			name: "no new fields",
@@ -53,6 +55,14 @@ func TestDetectMissingDocs(t *testing.T) {
 				},
 			},
 			oldResourceMap: map[string]*schema.Resource{},
+			newDataSourceMap: map[string]*schema.Resource{
+				"google_data_y": {
+					Schema: map[string]*schema.Schema{
+						"field-a": {Description: "beep"},
+					},
+				},
+			},
+			oldDataSourceMap: map[string]*schema.Resource{},
 			want: MissingDocsSummary{
 				Resource: []detector.MissingDocDetails{
 					{
@@ -72,15 +82,12 @@ func TestDetectMissingDocs(t *testing.T) {
 				},
 				DataSource: []detector.MissingDocDetails{
 					{
-						Name:     "google_x",
-						FilePath: "/website/docs/d/x.html.markdown",
+						Name:     "google_data_y",
+						FilePath: "/website/docs/d/data_y.html.markdown",
 						Fields: []detector.MissingDocField{
 							{
 								Field: "field-a",
 							},
-							{
-								Field: "field-b",
-							},
 						},
 					},
 				},
@@ -96,7 +103,7 @@ func TestDetectMissingDocs(t *testing.T) {
 					return diff.ComputeSchemaDiff(tc.oldResourceMap, tc.newResourceMap)
 				},
 				computeDatasourceSchemaDiff: func() diff.SchemaDiff {
-					return diff.ComputeSchemaDiff(tc.oldResourceMap, tc.newResourceMap)
+					return diff.ComputeSchemaDiff(tc.oldDataSourceMap, tc.newDataSourceMap)
 				},
 				stdout: &buf,
 			}
diff --git a/tools/diff-processor/cmd/root.go b/tools/diff-processor/cmd/root.go
index 0ecf9f3fad3d..d28ca886eea0 100644
--- a/tools/diff-processor/cmd/root.go
+++ b/tools/diff-processor/cmd/root.go
@@ -24,6 +24,7 @@ func newRootCmd() (*cobra.Command, *rootOptions, error) {
 	cmd.AddCommand(newBreakingChangesCmd(o))
 	cmd.AddCommand(newChangedSchemaResourcesCmd(o))
 	cmd.AddCommand(newDetectMissingTestsCmd(o))
+	cmd.AddCommand(newDetectMissingDocsCmd(o))
 	return cmd, o, nil
 }