diff --git a/src/H5FDsubfiling/H5FDioc_int.c b/src/H5FDsubfiling/H5FDioc_int.c
index d96920f29a5..5ddaa239a24 100644
--- a/src/H5FDsubfiling/H5FDioc_int.c
+++ b/src/H5FDsubfiling/H5FDioc_int.c
@@ -85,12 +85,12 @@ herr_t
 H5FD__ioc_write_independent_async(int64_t context_id, int64_t offset, int64_t elements, const void *data,
                                   io_req_t **io_req)
 {
-    subfiling_context_t *sf_context    = NULL;
-    MPI_Request          ack_request   = MPI_REQUEST_NULL;
-    io_req_t            *sf_io_request = NULL;
-    int64_t              ioc_start = -1;
-    int64_t              ioc_offset = -1;
-    int64_t              ioc_subfile_idx = -1;
+    subfiling_context_t *sf_context       = NULL;
+    MPI_Request          ack_request      = MPI_REQUEST_NULL;
+    io_req_t            *sf_io_request    = NULL;
+    int64_t              ioc_start        = -1;
+    int64_t              ioc_offset       = -1;
+    int64_t              ioc_subfile_idx  = -1;
     int64_t              msg[3]           = {0};
     int                 *io_concentrators = NULL;
     int                  num_io_concentrators;
@@ -241,13 +241,13 @@ herr_t
 H5FD__ioc_read_independent_async(int64_t context_id, int64_t offset, int64_t elements, void *data,
                                  io_req_t **io_req)
 {
-    subfiling_context_t *sf_context    = NULL;
-    MPI_Request          ack_request   = MPI_REQUEST_NULL;
-    io_req_t            *sf_io_request = NULL;
-    bool                 need_data_tag = false;
-    int64_t              ioc_start = -1;
-    int64_t              ioc_offset = -1;
-    int64_t              ioc_subfile_idx = -1;
+    subfiling_context_t *sf_context       = NULL;
+    MPI_Request          ack_request      = MPI_REQUEST_NULL;
+    io_req_t            *sf_io_request    = NULL;
+    bool                 need_data_tag    = false;
+    int64_t              ioc_start        = -1;
+    int64_t              ioc_offset       = -1;
+    int64_t              ioc_subfile_idx  = -1;
     int64_t              msg[3]           = {0};
     int                 *io_concentrators = NULL;
     int                  num_io_concentrators;