diff --git a/src/r_data.c b/src/r_data.c
index 87b6b1193..b92d88f19 100644
--- a/src/r_data.c
+++ b/src/r_data.c
@@ -263,7 +263,7 @@ static UINT8 *R_GenerateTexture(size_t texnum)
 	texturememory += blocksize;
 	block = Z_Malloc(blocksize+1, PU_STATIC, &texturecache[texnum]);
 
-	memset(block, 0xF7, blocksize+1); // Transparency hack
+	memset(block, 0xFF, blocksize+1); // Transparency hack
 
 	// columns lookup table
 	colofs = (UINT32 *)(void *)block;