diff --git a/tests/checkasm/vf_threshold.c b/tests/checkasm/vf_threshold.c
index 3709f2671e..5a2fc0e4ee 100644
--- a/tests/checkasm/vf_threshold.c
+++ b/tests/checkasm/vf_threshold.c
@@ -32,7 +32,7 @@
            tmp_buf[j] = rnd() & 0xFF;    \
     } while (0)
 
-static void check_threshold_8(void){
+static void check_threshold(int depth){
     LOCAL_ALIGNED_32(uint8_t, in       , [WIDTH_PADDED]);
     LOCAL_ALIGNED_32(uint8_t, threshold, [WIDTH_PADDED]);
     LOCAL_ALIGNED_32(uint8_t, min      , [WIDTH_PADDED]);
@@ -49,7 +49,7 @@ static void check_threshold_8(void){
                  ptrdiff_t olinesize, int w, int h);
 
     ThresholdContext s;
-    s.depth = 8;
+    s.depth = depth;
     ff_threshold_init(&s);
 
     memset(in,     0, WIDTH_PADDED);
@@ -63,10 +63,13 @@ static void check_threshold_8(void){
     randomize_buffers(min, WIDTH);
     randomize_buffers(max, WIDTH);
 
-    if (check_func(s.threshold, "threshold8")) {
+    if (depth == 16)
+        w /= 2;
+
+    if (check_func(s.threshold, "threshold%d", depth)) {
         call_ref(in, threshold, min, max, out_ref, line_size, line_size, line_size, line_size, line_size, w, 1);
         call_new(in, threshold, min, max, out_new, line_size, line_size, line_size, line_size, line_size, w, 1);
-        if (memcmp(out_ref, out_new, w))
+        if (memcmp(out_ref, out_new, WIDTH))
             fail();
         bench_new(in, threshold, min, max, out_new, line_size, line_size, line_size, line_size, line_size, w, 1);
     }
@@ -74,6 +77,9 @@ static void check_threshold_8(void){
 
 void checkasm_check_vf_threshold(void)
 {
-    check_threshold_8();
+    check_threshold(8);
     report("threshold8");
+
+    check_threshold(16);
+    report("threshold16");
 }