diff --git a/c_api/IndexIVF_c_ex.cpp b/c_api/IndexIVF_c_ex.cpp
index 39041a5265..989264a471 100644
--- a/c_api/IndexIVF_c_ex.cpp
+++ b/c_api/IndexIVF_c_ex.cpp
@@ -12,6 +12,7 @@
 #include "macros_impl.h"
 
 using faiss::IndexIVF;
+using faiss::SearchParameters;
 using faiss::SearchParametersIVF;
 
 int faiss_IndexIVF_set_direct_map(FaissIndexIVF* index, int direct_map_type) {
@@ -39,12 +40,14 @@ int faiss_Search_closest_eligible_centroids(
         float* query,
         int k, 
         float* centroid_distances,
-        idx_t* centroid_ids) {
+        idx_t* centroid_ids,
+        const FaissSearchParameters* params) {
     try {
         faiss::IndexIVF* index_ivf = reinterpret_cast<IndexIVF*>(index); 
         assert(index_ivf);
 
-        index_ivf->quantizer->search(n, query, k, centroid_distances, centroid_ids);
+        index_ivf->quantizer->search(n, query, k, centroid_distances, centroid_ids,
+            reinterpret_cast<const faiss::SearchParameters*>(params));
     }
     CATCH_AND_HANDLE
 }
@@ -66,4 +69,4 @@ int faiss_IndexIVF_search_preassigned_with_params(
                 reinterpret_cast<const faiss::SearchParametersIVF*>(params));
     }
     CATCH_AND_HANDLE
-}
\ No newline at end of file
+}
diff --git a/c_api/IndexIVF_c_ex.h b/c_api/IndexIVF_c_ex.h
index 1aa9378b66..e2effd3525 100644
--- a/c_api/IndexIVF_c_ex.h
+++ b/c_api/IndexIVF_c_ex.h
@@ -41,7 +41,8 @@ int faiss_Search_closest_eligible_centroids(
         float* query,
         int k,
         float* centroid_distances,
-        idx_t* centroid_ids
+        idx_t* centroid_ids,
+        const FaissSearchParameters* params
 );
 
 /*