diff --git a/libavdevice/decklink_common.cpp b/libavdevice/decklink_common.cpp
index 6899bd29c9..07e16516cf 100644
--- a/libavdevice/decklink_common.cpp
+++ b/libavdevice/decklink_common.cpp
@@ -42,7 +42,7 @@ IDeckLinkIterator *CreateDeckLinkIteratorInstance(void)
 {
     IDeckLinkIterator *iter;
 
-    if (CoInitialize(NULL) != S_OK) {
+    if (CoInitialize(NULL) < 0) {
         av_log(NULL, AV_LOG_ERROR, "COM initialization failed.\n");
         return NULL;
     }