diff --git a/components/toolchain/gcc/nrf51_xxaa_sd.ld b/components/toolchain/gcc/nrf51_xxaa_sd.ld
index a3ec327..5870b91 100644
--- a/components/toolchain/gcc/nrf51_xxaa_sd.ld
+++ b/components/toolchain/gcc/nrf51_xxaa_sd.ld
@@ -6,7 +6,7 @@ GROUP(-lgcc -lc -lnosys)
 MEMORY
 {
   FLASH (rx) : ORIGIN = 0x0001B000, LENGTH = 0x25000
-  RAM (rwx) :  ORIGIN = 0x200013C8, LENGTH = 0x2C38
+  RAM (rwx) :  ORIGIN = 0x20001FE8, LENGTH = 0x2018
 }
 
 
diff --git a/components/toolchain/gcc/nrf51_xxac_sd.ld b/components/toolchain/gcc/nrf51_xxac_sd.ld
index 9db9211..41d99b3 100644
--- a/components/toolchain/gcc/nrf51_xxac_sd.ld
+++ b/components/toolchain/gcc/nrf51_xxac_sd.ld
@@ -6,7 +6,7 @@ GROUP(-lgcc -lc -lnosys)
 MEMORY
 {
   FLASH (rx) : ORIGIN = 0x0001B000, LENGTH = 0x25000
-  RAM (rwx) :  ORIGIN = 0x200013C8, LENGTH = 0x6C38
+  RAM (rwx) :  ORIGIN = 0x20001FE8, LENGTH = 0x6018
 }