diff --git a/java/app.go b/java/app.go
index 6ec6bb2..0f46b4e 100755
--- a/java/app.go
+++ b/java/app.go
@@ -526,8 +526,8 @@
 
 	staticLibProguardFlagFiles = android.FirstUniquePaths(staticLibProguardFlagFiles)
 
-	a.Module.extraProguardFlagFiles = append(a.Module.extraProguardFlagFiles, staticLibProguardFlagFiles...)
-	a.Module.extraProguardFlagFiles = append(a.Module.extraProguardFlagFiles, a.proguardOptionsFile)
+	a.Module.extraProguardFlagsFiles = append(a.Module.extraProguardFlagsFiles, staticLibProguardFlagFiles...)
+	a.Module.extraProguardFlagsFiles = append(a.Module.extraProguardFlagsFiles, a.proguardOptionsFile)
 }
 
 func (a *AndroidApp) installPath(ctx android.ModuleContext) android.InstallPath {