diff --git a/java/src/org/openqa/selenium/firefox/GeckoDriverService.java b/java/src/org/openqa/selenium/firefox/GeckoDriverService.java
index 8d52d0c8dab1f..d9d4479a90eac 100644
--- a/java/src/org/openqa/selenium/firefox/GeckoDriverService.java
+++ b/java/src/org/openqa/selenium/firefox/GeckoDriverService.java
@@ -135,7 +135,6 @@ protected boolean hasShutdownEndpoint() {
   public static class Builder
       extends FirefoxDriverService.Builder<GeckoDriverService, GeckoDriverService.Builder> {
 
-    private FirefoxBinary firefoxBinary;
     private String allowHosts;
     private FirefoxDriverLogLevel logLevel;
     private Boolean logTruncate;