diff --git a/marginalia_nu/src/main/java/nu/marginalia/wmsa/api/model/ApiSearchResult.java b/marginalia_nu/src/main/java/nu/marginalia/wmsa/api/model/ApiSearchResult.java
index 1fe6b53a..a58bd1be 100644
--- a/marginalia_nu/src/main/java/nu/marginalia/wmsa/api/model/ApiSearchResult.java
+++ b/marginalia_nu/src/main/java/nu/marginalia/wmsa/api/model/ApiSearchResult.java
@@ -23,7 +23,8 @@ public class ApiSearchResult {
         this.url = url.url.toString();
         this.title = url.getTitle();
         this.description = url.getDescription();
-        this.quality = url.getTermScore();
+
+        this.quality = sanitizeNaN(url.getTermScore(), -100);
 
         if (url.resultItem != null) {
             var bySet = url.resultItem.scores.stream().collect(Collectors.groupingBy(EdgeSearchResultKeywordScore::set));
@@ -43,4 +44,11 @@ public class ApiSearchResult {
             }
         }
     }
+
+    private double sanitizeNaN(double value, double alternative) {
+        if (!Double.isFinite(value)) {
+            return alternative;
+        }
+        return value;
+    }
 }