diff --git a/lib/lpc43xx/libopencm3_lpc43xx.ld b/lib/lpc43xx/libopencm3_lpc43xx.ld
index 5dad9ec3..8da52737 100644
--- a/lib/lpc43xx/libopencm3_lpc43xx.ld
+++ b/lib/lpc43xx/libopencm3_lpc43xx.ld
@@ -92,6 +92,7 @@ SECTIONS
 	_data_loadaddr = LOADADDR(.data);
 
 	.bss : {
+		_bss = .;
 		*(.bss*)	/* Read-write zero initialized data */
 		*(COMMON)
 		. = ALIGN(4);
diff --git a/lib/lpc43xx/libopencm3_lpc43xx_rom_to_ram.ld b/lib/lpc43xx/libopencm3_lpc43xx_rom_to_ram.ld
index 39602b59..17879fe8 100644
--- a/lib/lpc43xx/libopencm3_lpc43xx_rom_to_ram.ld
+++ b/lib/lpc43xx/libopencm3_lpc43xx_rom_to_ram.ld
@@ -93,6 +93,8 @@ SECTIONS
 	_data_loadaddr = LOADADDR(.data);
 
 	.bss : {
+		. = _edata;
+		_bss = .;
 		*(.bss*)	/* Read-write zero initialized data */
 		*(COMMON)
 		. = ALIGN(4);