diff --git a/BaS_gcc/include/pci.h b/BaS_gcc/include/pci.h
index 85b2cc5..e8d700e 100644
--- a/BaS_gcc/include/pci.h
+++ b/BaS_gcc/include/pci.h
@@ -106,7 +106,7 @@ typedef struct                       /* structure of resource descriptor    */
     unsigned long length;              /* length of resource                  */
     unsigned long offset;              /* offset PCI to phys. CPU Address     */
     unsigned long dmaoffset;           /* offset for DMA-transfers            */
-} PCI_RSC_DESC;
+} __attribute__ ((packed)) PCI_RSC_DESC;
 
 typedef struct                       /* structure of address conversion     */
 {