diff --git a/ampc-anon-stats/src/server/config/mod.rs b/ampc-anon-stats/src/server/config/mod.rs
index b3fde84..fd00bd7 100644
--- a/ampc-anon-stats/src/server/config/mod.rs
+++ b/ampc-anon-stats/src/server/config/mod.rs
@@ -104,6 +104,10 @@ pub struct AnonStatsServerConfig {
     /// If the available job size is smaller than this, the party will wait until enough data is available.
     pub min_2d_job_size: usize,
 
+    #[serde(default = "default_min_2d_job_size_opposite_mirror_match")]
+    /// Minimum job size for 2D anon stats computation with opposite mirror match.
+    pub min_2d_job_size_opposite_mirror_match: usize,
+
     #[serde(default = "default_min_face_job_size")]
     /// Minimum job size for Face anon stats computation.
     /// If the available job size is smaller than this, the party will wait until enough data is available.
@@ -234,6 +238,10 @@ fn default_min_2d_job_size() -> usize {
     1000
 }
 
+fn default_min_2d_job_size_opposite_mirror_match() -> usize {
+    20
+}
+
 fn default_min_face_job_size() -> usize {
     1000
 }
@@ -336,6 +344,7 @@ impl AnonStatsServerConfig {
             shutdown_last_results_sync_timeout_secs:
                 default_shutdown_last_results_sync_timeout_secs(),
             tls: None,
+            min_2d_job_size_opposite_mirror_match: default_min_2d_job_size_opposite_mirror_match(),
         }
     }