diff --git a/libavutil/tests/aes_ctr.c b/libavutil/tests/aes_ctr.c
index 65b49ee7fe..94b0201c7b 100644
--- a/libavutil/tests/aes_ctr.c
+++ b/libavutil/tests/aes_ctr.c
@@ -26,6 +26,16 @@ static const DECLARE_ALIGNED(8, uint8_t, plain)[] = {
     0x6d, 0x6f, 0x73, 0x74, 0x20, 0x72, 0x61, 0x6e, 0x64, 0x6f,
     0x6d, 0x6f, 0x73, 0x74, 0x20, 0x72, 0x61, 0x6e, 0x64, 0x6f
 };
+
+static const DECLARE_ALIGNED(8, uint8_t, encrypted)[] = {
+    0x95, 0xcd, 0x9a, 0x8a, 0x83, 0xa2, 0x1a, 0x84, 0x92, 0xed,
+    0xd6, 0xf2, 0x57, 0x2f, 0x61, 0x98, 0xbc, 0x20, 0x98, 0xee
+};
+
+static const DECLARE_ALIGNED(8, uint8_t, fixed_iv)[] = {
+    0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef
+};
+
 static DECLARE_ALIGNED(8, uint8_t, tmp)[20];
 
 int main (void)
@@ -34,6 +44,7 @@ int main (void)
     struct AVAESCTR *ae, *ad;
     const uint8_t *iv;
 
+    for (int i = 0; i < 2; i++) {
     ae = av_aes_ctr_alloc();
     ad = av_aes_ctr_alloc();
 
@@ -46,11 +57,18 @@ int main (void)
     if (av_aes_ctr_init(ad, (const uint8_t*)"0123456789abcdef") < 0)
         goto ERROR;
 
+        if (i)
+            av_aes_ctr_set_iv(ae, fixed_iv);
+        else
     av_aes_ctr_set_random_iv(ae);
     iv =   av_aes_ctr_get_iv(ae);
     av_aes_ctr_set_full_iv(ad, iv);
 
     av_aes_ctr_crypt(ae, tmp, plain, sizeof(tmp));
+        if (i && memcmp(tmp, encrypted, sizeof(tmp)) != 0) {
+            av_log(NULL, AV_LOG_ERROR, "test failed\n");
+            goto ERROR;
+        }
     av_aes_ctr_crypt(ad, tmp, tmp,   sizeof(tmp));
 
     if (memcmp(tmp, plain, sizeof(tmp)) != 0){
@@ -58,6 +76,11 @@ int main (void)
         goto ERROR;
     }
 
+        av_aes_ctr_free(ae);
+        av_aes_ctr_free(ad);
+        ae = ad = NULL;
+    }
+
     av_log(NULL, AV_LOG_INFO, "test passed\n");
     ret = 0;