diff --git a/pkg/cli/release.go b/pkg/cli/release.go
index a51dc81..4de46d8 100644
--- a/pkg/cli/release.go
+++ b/pkg/cli/release.go
@@ -191,6 +191,10 @@ func releasePublishAction(
 		return fmt.Errorf("invalid --type \"%s\"", rlsType)
 	}
 
+	if c.Args().Len() > 0 {
+		rlsOpts.AssetFiles = c.Args().Slice()
+	}
+
 	if rOpts.Plan != nil {
 		rlsOpts.Source = rOpts.Plan.Source
 
@@ -205,7 +209,8 @@ func releasePublishAction(
 			}
 		}
 
-		if rOpts.Plan.Output != nil {
+		// Set asset files based on plan if no file arguments were given.
+		if len(rlsOpts.AssetFiles) == 0 && rOpts.Plan.Output != nil {
 			rlsOpts.AssetFiles = []string{
 				filepath.Join(
 					rOpts.Plan.Output.Directory,
diff --git a/pkg/release/publish.go b/pkg/release/publish.go
index ea61c2b..81ae6fd 100644
--- a/pkg/release/publish.go
+++ b/pkg/release/publish.go
@@ -237,7 +237,7 @@ func uploadReleaseAssets(
 }
 
 func publishFileList(files []string) ([]string, error) {
-	var output []string
+	results := map[string]struct{}{}
 	for _, file := range files {
 		var err error
 		file, err = filepath.Abs(file)
@@ -253,7 +253,7 @@ func publishFileList(files []string) ([]string, error) {
 			return nil, fmt.Errorf("\"%s\" is not a file", file)
 		}
 
-		output = append(output, file)
+		results[file] = struct{}{}
 		sumFile := file + ".sha256"
 
 		_, err = os.Stat(sumFile)
@@ -264,7 +264,12 @@ func publishFileList(files []string) ([]string, error) {
 
 			return nil, err
 		}
-		output = append(output, sumFile)
+		results[sumFile] = struct{}{}
+	}
+
+	var output []string
+	for f := range results {
+		output = append(output, f)
 	}
 
 	return output, nil