diff --git a/tests/checkasm/hevc_add_res.c b/tests/checkasm/hevc_add_res.c
index a68d5745c8..0a3bcbb706 100644
--- a/tests/checkasm/hevc_add_res.c
+++ b/tests/checkasm/hevc_add_res.c
@@ -42,7 +42,7 @@
             AV_WN16A(buf + j * 2, rnd() & 0x3FF); \
     } while (0)
 
-static void compare_add_res(int size, ptrdiff_t stride)
+static void compare_add_res(int size, ptrdiff_t stride, int overflow_test)
 {
     LOCAL_ALIGNED_32(int16_t, res0, [32 * 32]);
     LOCAL_ALIGNED_32(int16_t, res1, [32 * 32]);
@@ -53,6 +53,8 @@ static void compare_add_res(int size, ptrdiff_t stride)
 
     randomize_buffers(res0, size);
     randomize_buffers2(dst0, size);
+    if (overflow_test)
+        res0[0] = 0x8000;
     memcpy(res1, res0, sizeof(*res0) * size);
     memcpy(dst1, dst0, sizeof(int16_t) * size);
 
@@ -73,7 +75,9 @@ static void check_add_res(HEVCDSPContext h, int bit_depth)
         ptrdiff_t stride = block_size << (bit_depth > 8);
 
         if (check_func(h.add_residual[i - 2], "hevc_add_res_%dx%d_%d", block_size, block_size, bit_depth)) {
-            compare_add_res(size, stride);
+            compare_add_res(size, stride, 0);
+            // overflow test for res = -32768
+            compare_add_res(size, stride, 1);
         }
     }
 }