diff --git a/eic_data.yaml b/eic_data.yaml
index 475efc3b0706ef07eefdd321174a7d7596432c09..defee344571d49dddb90f5f9d3c10468fa9c34df 100644
--- a/eic_data.yaml
+++ b/eic_data.yaml
@@ -379,5 +379,6 @@ datatypes :
       - double               cl_theta        // Intrinsic direction of cluster at position - Theta.
       - double               cl_phi          // Intrinsic direction of cluster at position - Phi.
     OneToManyRelations:
+      - eic::ImagingPixel    hits            // hits data
       - eic::ImagingLayer    layers          // layer data