diff --git a/src/audio_provider_avs.cpp b/src/audio_provider_avs.cpp
index 0daa77e8e..fff0ed823 100644
--- a/src/audio_provider_avs.cpp
+++ b/src/audio_provider_avs.cpp
@@ -64,8 +64,6 @@ public:
 };
 
 AvisynthAudioProvider::AvisynthAudioProvider(agi::fs::path const& filename) try {
-	agi::acs::CheckFileRead(filename);
-
 	std::lock_guard<std::mutex> lock(avs_wrapper.GetMutex());
 
 	try {
@@ -150,6 +148,7 @@ void AvisynthAudioProvider::FillBuffer(void *buf, int64_t start, int64_t count)
 }
 
 std::unique_ptr<agi::AudioProvider> CreateAvisynthAudioProvider(agi::fs::path const& file, agi::BackgroundRunner *) {
+	agi::acs::CheckFileRead(file);
 	return agi::make_unique<AvisynthAudioProvider>(file);
 }
 #endif
diff --git a/src/video_provider_avs.cpp b/src/video_provider_avs.cpp
index 7c779e800..263310675 100644
--- a/src/video_provider_avs.cpp
+++ b/src/video_provider_avs.cpp
@@ -94,8 +94,6 @@ public:
 };
 
 AvisynthVideoProvider::AvisynthVideoProvider(agi::fs::path const& filename, std::string const& colormatrix) try {
-	agi::acs::CheckFileRead(filename);
-
 	std::lock_guard<std::mutex> lock(avs.GetMutex());
 
 #ifdef _WIN32
@@ -326,6 +324,7 @@ void AvisynthVideoProvider::GetFrame(int n, VideoFrame &out) {
 
 namespace agi { class BackgroundRunner; }
 std::unique_ptr<VideoProvider> CreateAvisynthVideoProvider(agi::fs::path const& path, std::string const& colormatrix, agi::BackgroundRunner *) {
+	agi::acs::CheckFileRead(path);
 	return agi::make_unique<AvisynthVideoProvider>(path, colormatrix);
 }
 #endif // HAVE_AVISYNTH