diff --git a/stk500v2/main.cpp b/stk500v2/main.cpp
index 73cf410..1a2e870 100644
--- a/stk500v2/main.cpp
+++ b/stk500v2/main.cpp
@@ -332,6 +332,27 @@ void writeEepromByte(uint8_t *addr, uint8_t value)
 
 } // namespace
 
+static inline uint16_t getBootloaderSize()
+{
+	const auto highFuse = boot_lock_fuse_bits_get(GET_HIGH_FUSE_BITS);
+	constexpr auto BOOTSZ0 = 1;
+	constexpr auto BOOTSZ1 = 2;
+
+	if (highFuse & (1 << BOOTSZ1) && highFuse & (1 << BOOTSZ0))
+		return 256 * 2;
+	else if (highFuse & (1 << BOOTSZ1))
+		return 512 * 2;
+	else if (highFuse & (1 << BOOTSZ0))
+		return 1024 * 2;
+	return 2048 * 2;
+}
+
+static inline uint32_t getFlashSize()
+{
+	const auto bootloaderSize = getBootloaderSize();
+	return (FLASHEND - bootloaderSize + 1);
+}
+
 static inline void performChipErase()
 {
 	constexpr auto getEepromEraseFuseBit = []() -> bool {
@@ -339,23 +360,8 @@ static inline void performChipErase()
 		return boot_lock_fuse_bits_get(GET_HIGH_FUSE_BITS) & (1 << EESAVE);
 	};
 
-	constexpr auto getBootloaderSize = []() -> uint16_t {
-		const auto highFuse = boot_lock_fuse_bits_get(GET_HIGH_FUSE_BITS);
-		constexpr auto BOOTSZ0 = 1;
-		constexpr auto BOOTSZ1 = 2;
-
-		if (highFuse & (1 << BOOTSZ1) && highFuse & (1 << BOOTSZ0))
-			return 256 * 2;
-		else if (highFuse & (1 << BOOTSZ1))
-			return 512 * 2;
-		else if (highFuse & (1 << BOOTSZ0))
-			return 1024 * 2;
-		return 2048 * 2;
-	};
-
-	constexpr auto eraseFlash = [getBootloaderSize]() {
-		const auto bootloaderSize = getBootloaderSize();
-		const auto flashSize = (FLASHEND - bootloaderSize + 1);
+	constexpr auto eraseFlash = []() {
+		const auto flashSize = getFlashSize();
 
 		for (uint16_t i = 0; i < flashSize; i += SPM_PAGESIZE) {
 			boot_page_erase(i);