diff --git a/cmd/merge.go b/cmd/merge.go
index 3572d85..770ae49 100644
--- a/cmd/merge.go
+++ b/cmd/merge.go
@@ -32,7 +32,7 @@ If append flag is set then existing arrays will be merged with the arrays from e
 	cmdMerge.PersistentFlags().BoolVarP(&writeInplace, "inplace", "i", false, "update the yaml file inplace")
 	cmdMerge.PersistentFlags().BoolVarP(&overwriteFlag, "overwrite", "x", false, "update the yaml file by overwriting existing values")
 	cmdMerge.PersistentFlags().BoolVarP(&autoCreateFlag, "autocreate", "c", true, "automatically create any missing entries")
-	cmdMerge.PersistentFlags().StringVarP(&arrayMergeStrategyFlag, "array", "a", "update", "array merge strategy (update/append/overwrite)")
+	cmdMerge.PersistentFlags().StringVarP(&arrayMergeStrategyFlag, "arrays", "a", "update", "array merge strategy (update/append/overwrite)")
 	cmdMerge.PersistentFlags().StringVarP(&docIndex, "doc", "d", "0", "process document index number (0 based, * for all documents)")
 	return cmdMerge
 }
diff --git a/cmd/merge_test.go b/cmd/merge_test.go
index 1729928..3ef0e66 100644
--- a/cmd/merge_test.go
+++ b/cmd/merge_test.go
@@ -97,7 +97,7 @@ func TestMergeOverwriteDeepExampleCmd(t *testing.T) {
 
 func TestMergeAppendCmd(t *testing.T) {
 	cmd := getRootCommand()
-	result := test.RunCmd(cmd, "merge --autocreate=false --array=append ../examples/data1.yaml ../examples/data2.yaml")
+	result := test.RunCmd(cmd, "merge --autocreate=false --arrays=append ../examples/data1.yaml ../examples/data2.yaml")
 	if result.Error != nil {
 		t.Error(result.Error)
 	}
@@ -123,7 +123,7 @@ func TestMergeAppendArraysCmd(t *testing.T) {
 	defer test.RemoveTempYamlFile(mergeFilename)
 
 	cmd := getRootCommand()
-	result := test.RunCmd(cmd, fmt.Sprintf("merge --array=append -d* %s %s", filename, mergeFilename))
+	result := test.RunCmd(cmd, fmt.Sprintf("merge --arrays=append -d* %s %s", filename, mergeFilename))
 	if result.Error != nil {
 		t.Error(result.Error)
 	}
@@ -181,7 +181,7 @@ usage:
 
 func TestMergeOverwriteAndAppendCmd(t *testing.T) {
 	cmd := getRootCommand()
-	result := test.RunCmd(cmd, "merge --autocreate=false --array=append --overwrite ../examples/data1.yaml ../examples/data2.yaml")
+	result := test.RunCmd(cmd, "merge --autocreate=false --arrays=append --overwrite ../examples/data1.yaml ../examples/data2.yaml")
 	if result.Error != nil {
 		t.Error(result.Error)
 	}
@@ -208,7 +208,7 @@ b: [6]`
 	defer test.RemoveTempYamlFile(mergeFilename)
 
 	cmd := getRootCommand()
-	result := test.RunCmd(cmd, fmt.Sprintf("merge --autocreate=false --array=overwrite --overwrite %s %s", filename, mergeFilename))
+	result := test.RunCmd(cmd, fmt.Sprintf("merge --autocreate=false --arrays=overwrite --overwrite %s %s", filename, mergeFilename))
 	if result.Error != nil {
 		t.Error(result.Error)
 	}
@@ -223,7 +223,7 @@ c:
 
 func TestMergeRootArraysCmd(t *testing.T) {
 	cmd := getRootCommand()
-	result := test.RunCmd(cmd, "merge --array=append ../examples/sample_array.yaml ../examples/sample_array_2.yaml")
+	result := test.RunCmd(cmd, "merge --arrays=append ../examples/sample_array.yaml ../examples/sample_array_2.yaml")
 	if result.Error != nil {
 		t.Error(result.Error)
 	}
@@ -238,7 +238,7 @@ func TestMergeRootArraysCmd(t *testing.T) {
 
 func TestMergeOverwriteArraysCmd(t *testing.T) {
 	cmd := getRootCommand()
-	result := test.RunCmd(cmd, "merge --array=overwrite ../examples/sample_array.yaml ../examples/sample_array_2.yaml")
+	result := test.RunCmd(cmd, "merge --arrays=overwrite ../examples/sample_array.yaml ../examples/sample_array_2.yaml")
 	if result.Error != nil {
 		t.Error(result.Error)
 	}