diff --git a/src/mesa/main/image.c b/src/mesa/main/image.c
index a5ec11d..fc278bb 100644
--- a/src/mesa/main/image.c
+++ b/src/mesa/main/image.c
@@ -3229,6 +3229,7 @@ extract_float_rgba(GLuint n, GLfloat rgba[][4],
           srcFormat == GL_RGBA ||
           srcFormat == GL_BGRA ||
           srcFormat == GL_ABGR_EXT ||
+          srcFormat == GL_DU8DV8_ATI ||
           srcFormat == GL_DUDV_ATI);
 
    ASSERT(srcType == GL_UNSIGNED_BYTE ||
@@ -3344,6 +3345,7 @@ extract_float_rgba(GLuint n, GLfloat rgba[][4],
          aComp = 0;
          stride = 4;
          break;
+      case GL_DU8DV8_ATI:
       case GL_DUDV_ATI:
          redIndex = 0;
          greenIndex = 1;