diff --git a/src/tmap.nas b/src/tmap.nas
index 6d1629c20..dbe64806d 100644
--- a/src/tmap.nas
+++ b/src/tmap.nas
@@ -17,7 +17,7 @@
 [BITS 32]
 
 %define FRACBITS 16
-%define TRANSPARENTPIXEL 247
+%define TRANSPARENTPIXEL 255
 
 %ifdef LINUX
 %macro cextern 1
diff --git a/src/tmap_mmx.nas b/src/tmap_mmx.nas
index 928916668..758cd4395 100644
--- a/src/tmap_mmx.nas
+++ b/src/tmap_mmx.nas
@@ -18,7 +18,7 @@
 [BITS 32]
 
 %define FRACBITS 16
-%define TRANSPARENTPIXEL 247
+%define TRANSPARENTPIXEL 255
 
 %ifdef LINUX
 %macro cextern 1