diff --git a/source/net/filebot/NativeRenameAction.java b/source/net/filebot/NativeRenameAction.java
index 4c44d0f9..a53490f4 100644
--- a/source/net/filebot/NativeRenameAction.java
+++ b/source/net/filebot/NativeRenameAction.java
@@ -42,7 +42,8 @@ public enum NativeRenameAction implements RenameAction {
 	private static void SHFileOperation(NativeRenameAction action, String[] src, String[] dst) {
 		// configure parameter structure
 		SHFILEOPSTRUCT op = new SHFILEOPSTRUCT();
-		op.wFunc = (action == MOVE) ? ShellAPI.FO_MOVE : ShellAPI.FO_COPY;
+
+		op.wFunc = SHFileOperationFunction(action);
 		op.fFlags = Shell32.FOF_MULTIDESTFILES | Shell32.FOF_NOCOPYSECURITYATTRIBS | Shell32.FOF_NOCONFIRMATION | Shell32.FOF_NOCONFIRMMKDIR;
 
 		op.pFrom = op.encodePaths(src);
@@ -55,6 +56,17 @@ public enum NativeRenameAction implements RenameAction {
 		}
 	}
 
+	private static int SHFileOperationFunction(NativeRenameAction action) {
+		switch (action) {
+		case MOVE:
+			return ShellAPI.FO_MOVE;
+		case COPY:
+			return ShellAPI.FO_COPY;
+		default:
+			throw new UnsupportedOperationException("SHFileOperation not supported: " + action);
+		}
+	}
+
 	private static String[] getPathArray(List<File> files) {
 		return files.stream().map(File::getAbsolutePath).toArray(String[]::new);
 	}