diff --git a/source/net/sourceforge/filebot/cli/ScriptShell.lib.groovy b/source/net/sourceforge/filebot/cli/ScriptShell.lib.groovy
index cab680ba..8874a8a8 100644
--- a/source/net/sourceforge/filebot/cli/ScriptShell.lib.groovy
+++ b/source/net/sourceforge/filebot/cli/ScriptShell.lib.groovy
@@ -54,7 +54,6 @@ String.metaClass.getNameWithoutExtension = { getNameWithoutExtension(delegate) }
 String.metaClass.getExtension = { getExtension(delegate) }
 String.metaClass.hasExtension = { String... ext -> hasExtension(delegate, ext) }
 String.metaClass.validateFileName = { validateFileName(delegate) }
-String.metaClass.validateFilePath = { validateFilePath(delegate) }
 
 // helper for enforcing filename length limits, e.g. truncate filename but keep extension
 String.metaClass.truncateFileName = { int limit = 255 -> def ext = getExtension(delegate); def name = getNameWithoutExtension(delegate); return name.substring(0, Math.min(limit - (ext ? 1+ext.length() : 0), name.length())) + (ext ? '.'+ext : '') }
diff --git a/source/net/sourceforge/tuned/FileUtilities.java b/source/net/sourceforge/tuned/FileUtilities.java
index fb25e3fa..c0edd252 100644
--- a/source/net/sourceforge/tuned/FileUtilities.java
+++ b/source/net/sourceforge/tuned/FileUtilities.java
@@ -471,7 +471,7 @@ public final class FileUtilities {
 	 */
 	public static String validateFileName(CharSequence filename) {
 		// strip invalid characters from file name
-		return ILLEGAL_CHARACTERS.matcher(filename).replaceAll("").trim();
+		return ILLEGAL_CHARACTERS.matcher(filename).replaceAll("").replaceAll("\\s+", " ").trim();
 	}
 
 	public static boolean isInvalidFileName(CharSequence filename) {