diff --git a/dlls/ntdll/unix/sync.c b/dlls/ntdll/unix/sync.c
index a2d587ac197..26a4b1a9a04 100644
--- a/dlls/ntdll/unix/sync.c
+++ b/dlls/ntdll/unix/sync.c
@@ -993,7 +993,7 @@ NTSTATUS WINAPI NtSetInformationDebugObject( HANDLE handle, DEBUGOBJECTINFOCLASS
 
 
 /* convert the server event data to an NT state change; helper for NtWaitForDebugEvent */
-static NTSTATUS event_data_to_state_change( const debug_event_t *data, DBGUI_WAIT_STATE_CHANGE *state )
+static NTSTATUS event_data_to_state_change( const union debug_event_data *data, DBGUI_WAIT_STATE_CHANGE *state )
 {
     int i;
 
@@ -1098,7 +1098,7 @@ static NTSTATUS get_image_machine( HANDLE handle, USHORT *machine )
 NTSTATUS WINAPI NtWaitForDebugEvent( HANDLE handle, BOOLEAN alertable, LARGE_INTEGER *timeout,
                                      DBGUI_WAIT_STATE_CHANGE *state )
 {
-    debug_event_t data;
+    union debug_event_data data;
     unsigned int ret;
     BOOL wait = TRUE;
 
diff --git a/include/wine/server_protocol.h b/include/wine/server_protocol.h
index db96db10268..51188a9c126 100644
--- a/include/wine/server_protocol.h
+++ b/include/wine/server_protocol.h
@@ -57,7 +57,7 @@ struct request_max_size
 
 
 
-typedef union
+union debug_event_data
 {
     int code;
     struct
@@ -109,7 +109,7 @@ typedef union
         int          __pad;
         mod_handle_t base;
     } unload_dll;
-} debug_event_t;
+};
 
 
 enum context_exec_space
diff --git a/server/debugger.c b/server/debugger.c
index c59a0abea77..ceeaea99ece 100644
--- a/server/debugger.c
+++ b/server/debugger.c
@@ -48,7 +48,7 @@ struct debug_event
     struct file           *file;      /* file object for events that need one */
     enum debug_event_state state;     /* event state */
     int                    status;    /* continuation status */
-    debug_event_t          data;      /* event data */
+    union debug_event_data data;      /* event data */
 };
 
 static const WCHAR debug_obj_name[] = {'D','e','b','u','g','O','b','j','e','c','t'};
@@ -142,7 +142,7 @@ static client_ptr_t get_teb_user_ptr( struct thread *thread )
 
 static void fill_exception_event( struct debug_event *event, const void *arg )
 {
-    const debug_event_t *data = arg;
+    const union debug_event_data *data = arg;
     event->data.exception = data->exception;
     event->data.exception.nb_params = min( event->data.exception.nb_params, EXCEPTION_MAXIMUM_PARAMETERS );
 }
@@ -641,7 +641,7 @@ DECL_HANDLER(queue_exception_event)
     reply->handle = 0;
     if (debug_obj)
     {
-        debug_event_t data;
+        union debug_event_data data;
         struct debug_event *event;
         struct thread *thread = current;
 
diff --git a/server/protocol.def b/server/protocol.def
index c8d59efe084..7b14b5e92eb 100644
--- a/server/protocol.def
+++ b/server/protocol.def
@@ -73,7 +73,7 @@ struct request_max_size
 
 
 /* debug event data */
-typedef union
+union debug_event_data
 {
     int code;   /* event code */
     struct
@@ -125,7 +125,7 @@ typedef union
         int          __pad;
         mod_handle_t base;       /* base address of the dll */
     } unload_dll;
-} debug_event_t;
+};
 
 
 enum context_exec_space
diff --git a/server/request_handlers.h b/server/request_handlers.h
index 3b74497db9f..6611cb57153 100644
--- a/server/request_handlers.h
+++ b/server/request_handlers.h
@@ -604,7 +604,6 @@ C_ASSERT( sizeof(client_ptr_t) == 8 );
 C_ASSERT( sizeof(context_t) == 1728 );
 C_ASSERT( sizeof(cursor_pos_t) == 24 );
 C_ASSERT( sizeof(data_size_t) == 4 );
-C_ASSERT( sizeof(debug_event_t) == 160 );
 C_ASSERT( sizeof(file_pos_t) == 8 );
 C_ASSERT( sizeof(generic_map_t) == 16 );
 C_ASSERT( sizeof(int) == 4 );
@@ -640,6 +639,7 @@ C_ASSERT( sizeof(timeout_t) == 8 );
 C_ASSERT( sizeof(udp_endpoint) == 32 );
 C_ASSERT( sizeof(union apc_call) == 64 );
 C_ASSERT( sizeof(union apc_result) == 40 );
+C_ASSERT( sizeof(union debug_event_data) == 160 );
 C_ASSERT( sizeof(union hw_input) == 40 );
 C_ASSERT( sizeof(union message_data) == 48 );
 C_ASSERT( sizeof(unsigned __int64) == 8 );
diff --git a/server/trace.c b/server/trace.c
index 56576339eb8..c3d4763c055 100644
--- a/server/trace.c
+++ b/server/trace.c
@@ -887,7 +887,7 @@ static void dump_varargs_contexts( const char *prefix, data_size_t size )
 
 static void dump_varargs_debug_event( const char *prefix, data_size_t size )
 {
-    debug_event_t event;
+    union debug_event_data event;
 
     if (!size)
     {
diff --git a/tools/make_requests b/tools/make_requests
index 7a700372b2d..f028bd42dde 100755
--- a/tools/make_requests
+++ b/tools/make_requests
@@ -45,7 +45,6 @@ my %formats =
     # varargs-only structures
     "context_t"                => [  1728,  8 ],
     "cursor_pos_t"             => [  24,  8 ],
-    "debug_event_t"            => [  160,  8 ],
     "pe_image_info_t"          => [  88,  8 ],
     "property_data_t"          => [  16,  8 ],
     "select_op_t"              => [  264,  8 ],
@@ -55,6 +54,7 @@ my %formats =
     "union apc_call"           => [ 64, 8 ],
     "union apc_result"         => [ 40, 8 ],
     "struct async_data"        => [ 40, 8 ],
+    "union debug_event_data"   => [ 160, 8 ],
     "struct filesystem_event"  => [ 12, 4 ],
     "struct handle_info"       => [ 20, 4 ],
     "union hw_input"           => [ 40, 8 ],