diff --git a/Userland/Libraries/LibWeb/WebAudio/BaseAudioContext.cpp b/Userland/Libraries/LibWeb/WebAudio/BaseAudioContext.cpp
index bf44a87c1a4..8b3cae4f6d0 100644
--- a/Userland/Libraries/LibWeb/WebAudio/BaseAudioContext.cpp
+++ b/Userland/Libraries/LibWeb/WebAudio/BaseAudioContext.cpp
@@ -13,8 +13,9 @@
 
 namespace Web::WebAudio {
 
-BaseAudioContext::BaseAudioContext(JS::Realm& realm)
+BaseAudioContext::BaseAudioContext(JS::Realm& realm, float sample_rate)
     : DOM::EventTarget(realm)
+    , m_sample_rate(sample_rate)
 {
 }
 
diff --git a/Userland/Libraries/LibWeb/WebAudio/BaseAudioContext.h b/Userland/Libraries/LibWeb/WebAudio/BaseAudioContext.h
index 7b609b7b9eb..fab80d0c9ca 100644
--- a/Userland/Libraries/LibWeb/WebAudio/BaseAudioContext.h
+++ b/Userland/Libraries/LibWeb/WebAudio/BaseAudioContext.h
@@ -50,7 +50,7 @@ public:
     WebIDL::ExceptionOr<JS::NonnullGCPtr<OscillatorNode>> create_oscillator();
 
 protected:
-    explicit BaseAudioContext(JS::Realm&);
+    explicit BaseAudioContext(JS::Realm&, float m_sample_rate = 0);
 
     virtual void initialize(JS::Realm&) override;
 
diff --git a/Userland/Libraries/LibWeb/WebAudio/OfflineAudioContext.cpp b/Userland/Libraries/LibWeb/WebAudio/OfflineAudioContext.cpp
index 3c94b9baf7a..bb3907a3e50 100644
--- a/Userland/Libraries/LibWeb/WebAudio/OfflineAudioContext.cpp
+++ b/Userland/Libraries/LibWeb/WebAudio/OfflineAudioContext.cpp
@@ -73,11 +73,10 @@ OfflineAudioContext::OfflineAudioContext(JS::Realm& realm, OfflineAudioContextOp
 }
 
 OfflineAudioContext::OfflineAudioContext(JS::Realm& realm, WebIDL::UnsignedLong number_of_channels, WebIDL::UnsignedLong length, float sample_rate)
-    : BaseAudioContext(realm)
+    : BaseAudioContext(realm, sample_rate)
     , m_length(length)
 {
     (void)number_of_channels;
-    (void)sample_rate;
 }
 
 void OfflineAudioContext::initialize(JS::Realm& realm)