diff --git a/Source/JavaScriptCore/heap/FullGCActivityCallback.cpp b/Source/JavaScriptCore/heap/FullGCActivityCallback.cpp
index 114e3f21f3ddc..c6c49f7bf7037 100644
--- a/Source/JavaScriptCore/heap/FullGCActivityCallback.cpp
+++ b/Source/JavaScriptCore/heap/FullGCActivityCallback.cpp
@@ -41,7 +41,7 @@ void FullGCActivityCallback::doCollection(VM& vm)
     Heap& heap = vm.heap;
     m_didGCRecently = false;
 
-#if !PLATFORM(IOS_FAMILY) || PLATFORM(MACCATALYST)
+#if (!PLATFORM(IOS_FAMILY) && !PLATFORM(WPE)) || PLATFORM(MACCATALYST)
     MonotonicTime startTime = MonotonicTime::now();
     if (MemoryPressureHandler::singleton().isUnderMemoryPressure() && heap.isPagedOut()) {
         cancel();
diff --git a/Source/WebCore/page/MemoryRelease.cpp b/Source/WebCore/page/MemoryRelease.cpp
index f13783a3f7c37..560272ed4f2d6 100644
--- a/Source/WebCore/page/MemoryRelease.cpp
+++ b/Source/WebCore/page/MemoryRelease.cpp
@@ -126,7 +126,7 @@ static void releaseCriticalMemory(Synchronous synchronous, MaintainBackForwardCa
         GCController::singleton().deleteAllCode(JSC::DeleteAllCodeIfNotCollecting);
         GCController::singleton().garbageCollectNow();
     } else {
-#if PLATFORM(IOS_FAMILY)
+#if PLATFORM(IOS_FAMILY) || PLATFORM(WPE)
         GCController::singleton().garbageCollectNowIfNotDoneRecently();
 #else
         GCController::singleton().garbageCollectSoon();
diff --git a/Source/WebCore/workers/WorkerGlobalScope.cpp b/Source/WebCore/workers/WorkerGlobalScope.cpp
index 8b56344669fa2..2149dd867fa58 100644
--- a/Source/WebCore/workers/WorkerGlobalScope.cpp
+++ b/Source/WebCore/workers/WorkerGlobalScope.cpp
@@ -606,7 +606,7 @@ void WorkerGlobalScope::deleteJSCodeAndGC(Synchronous synchronous)
             return;
         }
     }
-#if PLATFORM(IOS_FAMILY)
+#if PLATFORM(IOS_FAMILY) || PLATFORM(WPE)
     if (!vm().heap.currentThreadIsDoingGCWork()) {
         vm().heap.collectNowFullIfNotDoneRecently(JSC::Async);
         return;