diff --git a/tests/fate/screen.mak b/tests/fate/screen.mak
index bd6d228544..1c92935d23 100644
--- a/tests/fate/screen.mak
+++ b/tests/fate/screen.mak
@@ -117,7 +117,8 @@ FATE_SCREEN += $(FATE_VMNC-yes)
 fate-vmnc: $(FATE_VMNC-yes)
 
 FATE_ZMBV += fate-zmbv-8bit
-fate-zmbv-8bit: CMD = framecrc -i $(TARGET_SAMPLES)/zmbv/wc2_001-partial.avi -an -pix_fmt rgb24 -vf scale
+# The last frame is corrupted.
+fate-zmbv-8bit: CMD = framecrc -i $(TARGET_SAMPLES)/zmbv/wc2_001-partial.avi -an -frames:v 275 -pix_fmt rgb24 -vf scale
 
 FATE_ZMBV += fate-zmbv-15bit
 fate-zmbv-15bit: CMD = framecrc -i $(TARGET_SAMPLES)/zmbv/zmbv_15bit.avi -pix_fmt rgb24 -t 25 -vf scale
diff --git a/tests/ref/fate/zmbv-8bit b/tests/ref/fate/zmbv-8bit
index 7c2fab691f..9a7c96cb32 100644
--- a/tests/ref/fate/zmbv-8bit
+++ b/tests/ref/fate/zmbv-8bit
@@ -278,4 +278,3 @@
 0,        272,        272,        1,   192000, 0xd08e49d1
 0,        273,        273,        1,   192000, 0xd08e49d1
 0,        274,        274,        1,   192000, 0xd08e49d1
-0,        275,        275,        1,   192000, 0x1f34135f