diff --git a/python/lsst/ts/wep/utils/modelUtils.py b/python/lsst/ts/wep/utils/modelUtils.py
index da3faf55..0cdbbc2d 100644
--- a/python/lsst/ts/wep/utils/modelUtils.py
+++ b/python/lsst/ts/wep/utils/modelUtils.py
@@ -204,6 +204,7 @@ def forwardModelPair(
             blendOffsets=blendOffsetsIntra,
         ),
         zkCoeff,
+        isBinary=False,
     )
     # Add blends
     if blendOffsetsIntra is None:
@@ -247,6 +248,7 @@ def forwardModelPair(
             blendOffsets=blendOffsetsExtra,
         ),
         zkCoeff,
+        isBinary=False,
     )
     # Add blends
     if blendOffsetsExtra is None: