diff --git a/al/debug.cpp b/al/debug.cpp
index e91dc29c2..bfe773bf4 100644
--- a/al/debug.cpp
+++ b/al/debug.cpp
@@ -21,7 +21,6 @@
 
 #include "alc/context.h"
 #include "alc/device.h"
-#include "alc/inprogext.h"
 #include "alnumeric.h"
 #include "alspan.h"
 #include "alstring.h"
diff --git a/alc/context.cpp b/alc/context.cpp
index 29dea5e51..9c2183f5f 100644
--- a/alc/context.cpp
+++ b/alc/context.cpp
@@ -124,6 +124,12 @@ ALCcontext::ALCcontext(al::intrusive_ptr<ALCdevice> device, ContextFlagBitset fl
 {
     mDebugGroups.emplace_back(DebugSource::Other, 0, std::string{});
     mDebugEnabled.store(mContextFlags.test(ContextFlags::DebugBit), std::memory_order_relaxed);
+
+    /* Notification and low-severity debug messages are disabled by default. */
+    alDebugMessageControlDirectEXT(this, AL_DONT_CARE_EXT, AL_DONT_CARE_EXT,
+        AL_DEBUG_SEVERITY_NOTIFICATION_EXT, 0, nullptr, AL_FALSE);
+    alDebugMessageControlDirectEXT(this, AL_DONT_CARE_EXT, AL_DONT_CARE_EXT,
+        AL_DEBUG_SEVERITY_LOW_EXT, 0, nullptr, AL_FALSE);
 }
 
 ALCcontext::~ALCcontext()