diff --git a/include/zenoh/api/config.hxx b/include/zenoh/api/config.hxx
index 4fa8ebea..27dc0d77 100644
--- a/include/zenoh/api/config.hxx
+++ b/include/zenoh/api/config.hxx
@@ -111,7 +111,7 @@ class Config : public Owned<::z_owned_config_t> {
     /// @return true if the parameter was inserted, false otherwise.
     /// @note zenoh-c only.
     void insert_json(const std::string& key, const std::string& value, ZResult* err = nullptr) {
-        __ZENOH_RESULT_CHECK(::zc_config_insert_json(interop::as_loaned_c_ptr(*this), key.c_str(), value.c_str()), err,
+        __ZENOH_RESULT_CHECK(::zc_config_insert_json5(interop::as_loaned_c_ptr(*this), key.c_str(), value.c_str()), err,
                              std::string("Failed to insert '")
                                  .append(value)
                                  .append("' for the key '")
@@ -149,4 +149,4 @@ class Config : public Owned<::z_owned_config_t> {
     }
 #endif
 };
-}  // namespace zenoh
\ No newline at end of file
+}  // namespace zenoh