diff --git a/cpu/stm32/Makefile.include b/cpu/stm32/Makefile.include
index 962e53e241..517262893f 100644
--- a/cpu/stm32/Makefile.include
+++ b/cpu/stm32/Makefile.include
@@ -69,7 +69,7 @@ endif
 ifneq (,$(filter periph_fmc_sdram periph_fmc_nor_sram,$(USEMODULE)))
   ifneq (,$(FMC_RAM_LEN))
     LINKFLAGS += $(LINKFLAGPREFIX)--defsym=_fmc_ram_addr=$(FMC_RAM_ADDR)
-    LINKFLAGS += $(LINKFLAGPREFIX)--defsym=_fmc_ram_len=$(FMC_RAM_LEN)
+    LINKFLAGS += $(LINKFLAGPREFIX)--defsym=_fmc_ram_length=$(FMC_RAM_LEN)
     CFLAGS += -DCPU_HAS_FMC_RAM=1
     CFLAGS += -DNUM_HEAPS=4
   endif
diff --git a/cpu/stm32/ldscripts/stm32.ld b/cpu/stm32/ldscripts/stm32.ld
index 23234ee77a..c1f5a4dcd4 100644
--- a/cpu/stm32/ldscripts/stm32.ld
+++ b/cpu/stm32/ldscripts/stm32.ld
@@ -18,19 +18,19 @@
  * @}
  */
 
-ccmram_length = DEFINED( _ccmram_len ) ? _ccmram_len : 0x0 ;
+ccmram_length = DEFINED( _ccmram_length ) ? _ccmram_length : 0x0 ;
 
 sram4_addr = DEFINED( _sram4_length ) ? 0x28000000 : 0x0 ;
 sram4_length = DEFINED( _sram4_length ) ? _sram4_length : 0x0 ;
 
 fmc_ram_addr = DEFINED( _fmc_ram_addr ) ? _fmc_ram_addr : 0x0 ;
-fmc_ram_len = DEFINED( _fmc_ram_len ) ? _fmc_ram_len : 0x0 ;
+fmc_ram_length = DEFINED( _fmc_ram_length ) ? _fmc_ram_length : 0x0 ;
 
 MEMORY
 {
     ccmram  : ORIGIN = 0x10000000, LENGTH = ccmram_length
     sram4   : ORIGIN = sram4_addr, LENGTH = sram4_length
-    fmcram  : ORIGIN = fmc_ram_addr, LENGTH = fmc_ram_len
+    fmcram  : ORIGIN = fmc_ram_addr, LENGTH = fmc_ram_length
 }
 
 SECTIONS