diff --git a/Kernel/Devices/BlockDevice.cpp b/Kernel/Devices/BlockDevice.cpp
index 524b7ee951..2cf7a1ccd6 100644
--- a/Kernel/Devices/BlockDevice.cpp
+++ b/Kernel/Devices/BlockDevice.cpp
@@ -30,7 +30,7 @@ BlockDevice::~BlockDevice()
 
 bool BlockDevice::read_block(u64 index, UserOrKernelBuffer& buffer)
 {
-    auto read_request_or_error = try_make_request<AsyncBlockDeviceRequest>(AsyncBlockDeviceRequest::Read, index, 1, buffer, 512);
+    auto read_request_or_error = try_make_request<AsyncBlockDeviceRequest>(AsyncBlockDeviceRequest::Read, index, 1, buffer, m_block_size);
     if (read_request_or_error.is_error()) {
         dbgln("BlockDevice::read_block({}): try_make_request failed", index);
         return false;
@@ -56,7 +56,7 @@ bool BlockDevice::read_block(u64 index, UserOrKernelBuffer& buffer)
 
 bool BlockDevice::write_block(u64 index, const UserOrKernelBuffer& buffer)
 {
-    auto write_request_or_error = try_make_request<AsyncBlockDeviceRequest>(AsyncBlockDeviceRequest::Write, index, 1, buffer, 512);
+    auto write_request_or_error = try_make_request<AsyncBlockDeviceRequest>(AsyncBlockDeviceRequest::Write, index, 1, buffer, m_block_size);
     if (write_request_or_error.is_error()) {
         dbgln("BlockDevice::write_block({}): try_make_request failed", index);
         return false;