diff --git a/emannotationschemas/__init__.py b/emannotationschemas/__init__.py
index 82975d4..5d533ff 100644
--- a/emannotationschemas/__init__.py
+++ b/emannotationschemas/__init__.py
@@ -1,4 +1,5 @@
 from emannotationschemas.schemas.synapse import SynapseSchema
+from emannotationschemas.schemas.synapse import NoCenterSynapse
 from emannotationschemas.schemas.synapse import PlasticSynapse
 from emannotationschemas.schemas.synapse import ValidSynapse
 from emannotationschemas.schemas.synapse import BuhmannSynapseSchema
@@ -62,6 +63,7 @@
 type_mapping = {
     "synapse": SynapseSchema,
     "nocleft_synapse": NoCleftSynapse,
+    "nocenter_synapse": NoCenterSynapse,
     "fly_synapse": BuhmannSynapseSchema,
     "fly_nt_synapse": BuhmannEcksteinSynapseSchema,
     "bouton_shape": BoutonShape,
diff --git a/emannotationschemas/schemas/synapse.py b/emannotationschemas/schemas/synapse.py
index 47b2e77..743621f 100644
--- a/emannotationschemas/schemas/synapse.py
+++ b/emannotationschemas/schemas/synapse.py
@@ -50,6 +50,10 @@ class SynapseSchema(BaseSynapseSchema):
     size = mm.fields.Float(description="size of synapse")
 
 
+class NoCenterSynapse(BaseSynapseSchema):
+    size = mm.fields.Float(description="size of synapse")
+
+
 class BuhmannSynapseSchema(BaseSynapseSchema):
     connection_score = mm.fields.Float(
         description="score assigned by Buhmann et al. 2019"