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-rw-r--r--src/mesa/swrast/s_tritemp.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/swrast/s_tritemp.h b/src/mesa/swrast/s_tritemp.h
index f5bc03e81e..cded4a6c1c 100644
--- a/src/mesa/swrast/s_tritemp.h
+++ b/src/mesa/swrast/s_tritemp.h
@@ -393,7 +393,7 @@ static void NAME(GLcontext *ctx, const SWvertex *v0,
span.greenStep = 0;
span.blueStep = 0;
# ifdef INTERP_ALPHA
- span.attrStepX[FRAG_ATTRIB_COL0][3] = span.attrStepX[FRAG_ATTRIB_COL0][3] = 0.0F;
+ span.attrStepX[FRAG_ATTRIB_COL0][3] = span.attrStepY[FRAG_ATTRIB_COL0][3] = 0.0F;
span.alphaStep = 0;
# endif
}