diff --git a/core/src/processing/data/IntDict.java b/core/src/processing/data/IntDict.java
index 4cc3d927f..4d1aff090 100644
--- a/core/src/processing/data/IntDict.java
+++ b/core/src/processing/data/IntDict.java
@@ -88,6 +88,7 @@ public class IntDict {
       if (pieces.length == 2) {
         keys[count] = pieces[0];
         values[count] = PApplet.parseInt(pieces[1]);
+        indices.put(pieces[0], count);
         count++;
       }
     }