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-rw-r--r--src/mesa/swrast/s_alphabuf.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/swrast/s_alphabuf.c b/src/mesa/swrast/s_alphabuf.c
index b563baf39a0..736ff2d7394 100644
--- a/src/mesa/swrast/s_alphabuf.c
+++ b/src/mesa/swrast/s_alphabuf.c
@@ -112,7 +112,7 @@ _swrast_clear_alpha_buffers( GLcontext *ctx )
/* loop over four possible alpha buffers */
for (bufferBit = 1; bufferBit <= 8; bufferBit = bufferBit << 1) {
- if (bufferBit & ctx->Color._DrawDestMask) {
+ if (bufferBit & ctx->Color._DrawDestMask[0]) {
GLchan *buffer;
if (bufferBit == DD_FRONT_LEFT_BIT) {
buffer = ctx->DrawBuffer->FrontLeftAlpha;