diff --git a/app/src/main/java/org/fdroid/fdroid/IndexV1Updater.java b/app/src/main/java/org/fdroid/fdroid/IndexV1Updater.java
index 1bbfc52f7..a03e49829 100644
--- a/app/src/main/java/org/fdroid/fdroid/IndexV1Updater.java
+++ b/app/src/main/java/org/fdroid/fdroid/IndexV1Updater.java
@@ -327,7 +327,7 @@ public class IndexV1Updater extends IndexUpdater {
                     for (Apk apk : apks) {
                         if (!apk.isApk()) {
                             app.isApk = false;
-                        } else if (apk.sig.equalsIgnoreCase(platformSigCache)) {
+                        } else if (apk.sig.equals(platformSigCache)) {
                             app.preferredSigner = platformSigCache;
                         }
                     }