diff --git a/src/audio_provider_vs.cpp b/src/audio_provider_vs.cpp
index e66779502..575daaad6 100644
--- a/src/audio_provider_vs.cpp
+++ b/src/audio_provider_vs.cpp
@@ -54,7 +54,6 @@ public:
 };
 
 VapoursynthAudioProvider::VapoursynthAudioProvider(agi::fs::path const& filename) try {
-	agi::acs::CheckFileRead(filename);
 	std::lock_guard<std::mutex> lock(vs.GetMutex());
 
 	script = vs.GetScriptAPI()->createScript(nullptr);
@@ -162,6 +161,7 @@ VapoursynthAudioProvider::~VapoursynthAudioProvider() {
 }
 
 std::unique_ptr<agi::AudioProvider> CreateVapoursynthAudioProvider(agi::fs::path const& file, agi::BackgroundRunner *) {
+	agi::acs::CheckFileRead(file);
 	return agi::make_unique<VapoursynthAudioProvider>(file);
 }
 #endif
diff --git a/src/video_provider_vs.cpp b/src/video_provider_vs.cpp
index fa5dfdbf1..a0a006f43 100644
--- a/src/video_provider_vs.cpp
+++ b/src/video_provider_vs.cpp
@@ -105,7 +105,6 @@ void VapoursynthVideoProvider::SetResizeArg(VSMap *args, const VSMap *props, con
 }
 
 VapoursynthVideoProvider::VapoursynthVideoProvider(agi::fs::path const& filename, std::string const& colormatrix) try {
-	agi::acs::CheckFileRead(filename);
 	std::lock_guard<std::mutex> lock(vs.GetMutex());
 
 	script = vs.GetScriptAPI()->createScript(nullptr);
@@ -277,6 +276,7 @@ VapoursynthVideoProvider::~VapoursynthVideoProvider() {
 
 namespace agi { class BackgroundRunner; }
 std::unique_ptr<VideoProvider> CreateVapoursynthVideoProvider(agi::fs::path const& path, std::string const& colormatrix, agi::BackgroundRunner *) {
+	agi::acs::CheckFileRead(path);
 	return agi::make_unique<VapoursynthVideoProvider>(path, colormatrix);
 }
 #endif // WITH_VAPOURSYNTH