diff --git a/examples/c/ADM_update_adhoc_storage.c b/examples/c/ADM_update_adhoc_storage.c
index 2c58d640a85261097c8eb6f9e640d8a7f30dbcd7..383afbc1e59e193ba7d1a604268594e52af70dd5 100644
--- a/examples/c/ADM_update_adhoc_storage.c
+++ b/examples/c/ADM_update_adhoc_storage.c
@@ -118,7 +118,7 @@ main(int argc, char* argv[]) {
     }
 
     // We can now request the update to the server
-    if((ret = ADM_update_adhoc_storage(server, new_adhoc_ctx, adhoc_storage)) !=
+    if((ret = ADM_update_adhoc_storage(server, adhoc_storage, new_adhoc_ctx)) !=
        ADM_SUCCESS) {
         fprintf(stderr, "ADM_update_adhoc_storage() failed: %s\n",
                 ADM_strerror(ret));
diff --git a/examples/cxx/ADM_update_adhoc_storage.cpp b/examples/cxx/ADM_update_adhoc_storage.cpp
index a353d4578b55187550bd36fff0c5232777641d5c..a2905446f6500161c9e1a8535aaacf3f8171712c 100644
--- a/examples/cxx/ADM_update_adhoc_storage.cpp
+++ b/examples/cxx/ADM_update_adhoc_storage.cpp
@@ -63,8 +63,8 @@ main(int argc, char* argv[]) {
                 server, name, admire::storage::type::gekkofs,
                 adhoc_storage_ctx);
 
-        const auto ret = admire::update_adhoc_storage(
-                server, new_adhoc_storage_ctx, adhoc_storage);
+        const auto ret = admire::update_adhoc_storage(server, adhoc_storage,
+                                                      new_adhoc_storage_ctx);
 
         if(!ret) {
             fmt::print(stderr, "FATAL: ADM_update_adhoc_storage() failed: {}\n",
diff --git a/src/lib/admire.cpp b/src/lib/admire.cpp
index 42c2263087286e0b648c27f4679a407a94b29422..5bb0dae06c905c6930f9eef1958d532dd00a8635 100644
--- a/src/lib/admire.cpp
+++ b/src/lib/admire.cpp
@@ -249,9 +249,8 @@ register_adhoc_storage(const server& srv, const std::string& name,
 }
 
 admire::error_code
-update_adhoc_storage(const server& srv,
-                     const adhoc_storage::ctx& adhoc_storage_ctx,
-                     const adhoc_storage& adhoc_storage) {
+update_adhoc_storage(const server& srv, const adhoc_storage& adhoc_storage,
+                     const adhoc_storage::ctx& adhoc_storage_ctx) {
     return detail::update_adhoc_storage(srv, adhoc_storage_ctx, adhoc_storage);
 }
 
diff --git a/src/lib/admire.h b/src/lib/admire.h
index d0bf7cbb3ee97b0401e1ca3068907c76bedca669..2545d6c465b18ff5885afe46b2ff8dacc752fa0d 100644
--- a/src/lib/admire.h
+++ b/src/lib/admire.h
@@ -127,8 +127,8 @@ ADM_register_adhoc_storage(ADM_server_t server, const char* name,
  * successfully.
  */
 ADM_return_t
-ADM_update_adhoc_storage(ADM_server_t server, ADM_adhoc_context_t ctx,
-                         ADM_storage_t adhoc_storage);
+ADM_update_adhoc_storage(ADM_server_t server, ADM_storage_t adhoc_storage,
+                         ADM_adhoc_context_t ctx);
 
 /**
  * Remove an already-registered adhoc storage system.
diff --git a/src/lib/admire.hpp b/src/lib/admire.hpp
index 7cd9045bf3670331999ac796b63327fddf32bb06..13ed1b3b18f14666ead863fc402a85b35f5b8c65 100644
--- a/src/lib/admire.hpp
+++ b/src/lib/admire.hpp
@@ -63,9 +63,8 @@ register_adhoc_storage(const server& srv, const std::string& name,
                        const adhoc_storage::ctx& ctx);
 
 admire::error_code
-update_adhoc_storage(const server& srv,
-                     const adhoc_storage::ctx& adhoc_storage_ctx,
-                     const adhoc_storage& adhoc_storage);
+update_adhoc_storage(const server& srv, const adhoc_storage& adhoc_storage,
+                     const adhoc_storage::ctx& adhoc_storage_ctx);
 
 admire::error_code
 remove_adhoc_storage(const server& srv, const adhoc_storage& adhoc_storage);
diff --git a/src/lib/c_wrapper.cpp b/src/lib/c_wrapper.cpp
index d4dd6aa15fbc9fe07a161f6ea0c0915bcdcbcb0a..e9a2e142942cc6d24618dd05039544f27972964d 100644
--- a/src/lib/c_wrapper.cpp
+++ b/src/lib/c_wrapper.cpp
@@ -101,8 +101,8 @@ ADM_register_adhoc_storage(ADM_server_t server, const char* name,
 }
 
 ADM_return_t
-ADM_update_adhoc_storage(ADM_server_t server, ADM_adhoc_context_t ctx,
-                         ADM_storage_t adhoc_storage) {
+ADM_update_adhoc_storage(ADM_server_t server, ADM_storage_t adhoc_storage,
+                         ADM_adhoc_context_t ctx) {
 
     const admire::server srv{server};