diff --git a/app/src/main/java/de/sebse/fuplanner/fragments/moddetails/ModDetailGradebookAdapter.java b/app/src/main/java/de/sebse/fuplanner/fragments/moddetails/ModDetailGradebookAdapter.java
index 19bcb96..96167b9 100644
--- a/app/src/main/java/de/sebse/fuplanner/fragments/moddetails/ModDetailGradebookAdapter.java
+++ b/app/src/main/java/de/sebse/fuplanner/fragments/moddetails/ModDetailGradebookAdapter.java
@@ -127,10 +127,10 @@ class ModDetailGradebookAdapter extends RecyclerView.Adapter<RecyclerView.ViewHo
                             gradebook.getUserPointSum(),
                             gradebook.getMaxPointSum(),
                             gradebook.getPercentage() * 100,
-                            bestGrade.getPoints(),
-                            bestGrade.getMaxPoints(),
-                            bestGrade.getPoints() / bestGrade.getMaxPoints() * 100,
-                            bestGrade.getItemName()
+                            bestGrade == null ? 0 : bestGrade.getPoints(),
+                            bestGrade == null ? 0 : bestGrade.getMaxPoints(),
+                            bestGrade == null ? 0 : bestGrade.getPoints() / bestGrade.getMaxPoints() * 100,
+                            bestGrade == null ? "" : bestGrade.getItemName()
                     ));
                 }
                 break;