diff --git a/src/add-ons/kernel/bus_managers/usb/PhysicalMemoryAllocator.cpp b/src/add-ons/kernel/bus_managers/usb/PhysicalMemoryAllocator.cpp
index c86dbd01f1..5ef971b325 100644
--- a/src/add-ons/kernel/bus_managers/usb/PhysicalMemoryAllocator.cpp
+++ b/src/add-ons/kernel/bus_managers/usb/PhysicalMemoryAllocator.cpp
@@ -69,7 +69,7 @@ PhysicalMemoryAllocator::PhysicalMemoryAllocator(const char *name,
 	size_t roundedSize = biggestSize * minCountPerBlock;
 #ifdef HAIKU_TARGET_PLATFORM_HAIKU
 	fDebugBase = roundedSize;
-	fDebugChunkSize = 64;
+	fDebugChunkSize = 128;
 	fDebugUseMap = 0;
 	roundedSize += sizeof(fDebugUseMap) * 8 * fDebugChunkSize;
 #endif