diff --git a/src/vid_ega.c b/src/vid_ega.c
index a389176..b1f465b 100644
--- a/src/vid_ega.c
+++ b/src/vid_ega.c
@@ -453,12 +453,12 @@ void ega_poll(void *p)
                                                 if (ega->sc & 1 && !(ega->crtc[0x17] & 1))
                                                 {
                                                         edat[0] = ega->vram[(ega->ma << 1) + 0x8000];
-                                                        edat[1] = ega->vram[(ega->ma << 1) + 0x8004];
+                                                        edat[1] = ega->vram[(ega->ma << 1) + 0x8001];
                                                 }
                                                 else
                                                 {
                                                         edat[0] = ega->vram[(ega->ma << 1)];
-                                                        edat[1] = ega->vram[(ega->ma << 1) + 4];
+                                                        edat[1] = ega->vram[(ega->ma << 1) + 1];
                                                 }
                                                 ega->ma += 4; 
                                                 ega->ma &= ega->vrammask;
diff --git a/src/vid_svga_render.c b/src/vid_svga_render.c
index 165b92d..dc4e825 100644
--- a/src/vid_svga_render.c
+++ b/src/vid_svga_render.c
@@ -184,12 +184,12 @@ void svga_render_2bpp_lowres(svga_t *svga)
                         if (svga->sc & 1 && !(svga->crtc[0x17] & 1))
                         {
                                 dat[0] = svga->vram[(svga->ma << 1) + 0x8000];
-                                dat[1] = svga->vram[(svga->ma << 1) + 0x8004];
+                                dat[1] = svga->vram[(svga->ma << 1) + 0x8001];
                         }
                         else
                         {
                                 dat[0] = svga->vram[(svga->ma << 1)];
-                                dat[1] = svga->vram[(svga->ma << 1) + 4];
+                                dat[1] = svga->vram[(svga->ma << 1) + 1];
                         }
                         svga->ma += 4; 
                         svga->ma &= svga->vrammask;
@@ -234,12 +234,12 @@ void svga_render_2bpp_highres(svga_t *svga)
                         if (svga->sc & 1 && !(svga->crtc[0x17] & 1))
                         {
                                 dat[0] = svga->vram[(svga->ma << 1) + 0x8000];
-                                dat[1] = svga->vram[(svga->ma << 1) + 0x8004];
+                                dat[1] = svga->vram[(svga->ma << 1) + 0x8001];
                         }
                         else
                         {
                                 dat[0] = svga->vram[(svga->ma << 1)];
-                                dat[1] = svga->vram[(svga->ma << 1) + 4];
+                                dat[1] = svga->vram[(svga->ma << 1) + 1];
                         }
                         svga->ma += 4; 
                         svga->ma &= svga->vrammask;