diff --git a/src/gallium/drivers/freedreno/freedreno_util.h b/src/gallium/drivers/freedreno/freedreno_util.h
index 42d7ba11756..f9103375581 100644
--- a/src/gallium/drivers/freedreno/freedreno_util.h
+++ b/src/gallium/drivers/freedreno/freedreno_util.h
@@ -429,7 +429,7 @@ fd_msaa_samples(unsigned samples)
 {
    switch (samples) {
    default:
-      assert(0);
+      unreachable("Unsupported samples");
    case 0:
    case 1:
       return MSAA_ONE;