diff --git a/proguard-project.txt b/proguard-project.txt
index e4ea3e8..27b96f1 100644
--- a/proguard-project.txt
+++ b/proguard-project.txt
@@ -38,8 +38,8 @@
 # Without this rule, openFileChooser does not get called on KitKat
 -keep class acr.browser.lightning.LightningView$LightningChromeClient {
 	void openFileChooser(android.webkit.ValueCallback);
-	void openFileChooser(android.webkit.ValueCallback,java.lang.String);
-	void openFileChooser(android.webkit.ValueCallback,java.lang.String,java.lang.String);
+	void openFileChooser(android.webkit.ValueCallback, java.lang.String);
+	void openFileChooser(android.webkit.ValueCallback, java.lang.String, java.lang.String);
 }
 
 -keepclasseswithmembernames class * {