diff --git a/gxf_extensions/ucx/ucx_holoscan_component_serializer.cpp b/gxf_extensions/ucx/ucx_holoscan_component_serializer.cpp
index b33be2f2..12e495fe 100644
--- a/gxf_extensions/ucx/ucx_holoscan_component_serializer.cpp
+++ b/gxf_extensions/ucx/ucx_holoscan_component_serializer.cpp
@@ -264,7 +264,7 @@ Expected<size_t> UcxHoloscanComponentSerializer::serializeMessageLabel(
         "%zu bytes. You can try to increase the buffer capacity by setting the "
         "HOLOSCAN_UCX_SERIALIZATION_BUFFER_SIZE environment variable, but the limit it is "
         "possible to set will depend on the maximum header size supported by the underlying "
-        "ucp_send_am_nbx function of UCX.",
+        "ucp_am_send_nbx function of UCX.",
         total_size,
         buffer_capacity);
     return Unexpected{GXF_FAILURE};