diff --git a/F-Droid/build.gradle b/F-Droid/build.gradle
index 5319b6911..f4eabe09c 100644
--- a/F-Droid/build.gradle
+++ b/F-Droid/build.gradle
@@ -136,6 +136,8 @@ android {
     }
 
     buildTypes {
+        // use proguard on debug too since we have unknowingly broken
+        // release builds before.
         all {
             minifyEnabled true
             shrinkResources true