diff --git a/src/include/spiFlash.hxx b/src/include/spiFlash.hxx
index 611070f..3976e34 100644
--- a/src/include/spiFlash.hxx
+++ b/src/include/spiFlash.hxx
@@ -81,6 +81,10 @@ namespace bmpflash::spiFlash
 		pageRead = command(opcodeMode_t::with3BAddress, dataMode_t::dataIn, 0U, opcode_t::pageRead),
 	};
 
+	// NB: This technically invokes UB, however there's not really a better way to do this, so.
+	constexpr inline command_t operator |(const command_t &cmd, const uint8_t &opcode) noexcept
+		{ return static_cast<command_t>(uint16_t(cmd) | opcode); }
+
 	constexpr inline uint8_t spiStatusBusy{1};
 	constexpr inline uint8_t spiStatusWriteEnabled{2};
 
diff --git a/src/spiFlash.cxx b/src/spiFlash.cxx
index 32658d1..c579729 100644
--- a/src/spiFlash.cxx
+++ b/src/spiFlash.cxx
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: BSD-3-Clause
 // SPDX-FileCopyrightText: 2023 1BitSquared <info@1bitsquared.com>
 // SPDX-FileContributor: Written by Rachel Mant <git@dragonmux.network>
+#include <cstdint>
 #include <string_view>
 #include <substrate/console>
 #include <substrate/index_sequence>
@@ -33,7 +34,7 @@ namespace bmpflash::spiFlash
 		console.debug("Erasing sector at 0x"sv, asHex_t<6, '0'>{address});
 		// Start by erasing the block
 		if (!probe.runCommand(spiFlashCommand_t::writeEnable, 0U) ||
-			!probe.runCommand(spiFlashCommand_t::sectorErase, static_cast<uint32_t>(address)) ||
+			!probe.runCommand(spiFlashCommand_t::sectorErase | sectorEraseOpcode_, static_cast<uint32_t>(address)) ||
 			!waitFlashIdle(probe))
 		{
 			console.error("Failed to prepare SPI Flash block for writing"sv);