diff --git a/sky/disk.cpp b/sky/disk.cpp
index 2a74f668029..056276d9e11 100644
--- a/sky/disk.cpp
+++ b/sky/disk.cpp
@@ -74,7 +74,7 @@ uint16 *SkyState::load_file(uint16 file_nr, uint8 *dest)
     uint32 eax, ecx;
     int32 bytes_read;
     uint8 *file_ptr, *esiptr, *ediptr;
-    s file_header;
+    dataFileHeader file_header;
 
     #ifdef file_order_chk
 	warning("File order checking not implemented yet!\n");
diff --git a/sky/struc.h b/sky/struc.h
index 2e111a5d86f..24b86618237 100644
--- a/sky/struc.h
+++ b/sky/struc.h
@@ -19,7 +19,7 @@
  *
  */
 
-typedef struct dataFileHeader
+struct dataFileHeader
 {
     uint16 flag; // bit 0: set for colour data, clear for not
 		 // bit 1: set for compressed, clear for uncompressed
@@ -34,5 +34,5 @@ typedef struct dataFileHeader
     uint16 s_offset_x;
     uint16 s_offset_y;
     uint16 s_compressed_size;
-}s;
+};