diff --git a/configs/olimex-lpc1766stk/ftpc/defconfig b/configs/olimex-lpc1766stk/ftpc/defconfig
index adbacca26de..1072bba8b0c 100644
--- a/configs/olimex-lpc1766stk/ftpc/defconfig
+++ b/configs/olimex-lpc1766stk/ftpc/defconfig
@@ -205,7 +205,7 @@ CONFIG_LPC17_SSP1=y
 # Ethernet driver options
 #
 CONFIG_PHY_AUTONEG=y
-CONFIG_NET_EMACRAM_SIZE=8480
+CONFIG_NET_EMACRAM_SIZE=8512
 CONFIG_NET_NTXDESC=7
 CONFIG_NET_NRXDESC=7
 # CONFIG_NET_WOL is not set
diff --git a/configs/olimex-lpc1766stk/nettest/defconfig b/configs/olimex-lpc1766stk/nettest/defconfig
index f53fe63f12d..73c32b754e0 100644
--- a/configs/olimex-lpc1766stk/nettest/defconfig
+++ b/configs/olimex-lpc1766stk/nettest/defconfig
@@ -206,7 +206,7 @@ CONFIG_LPC17_UART0=y
 # Ethernet driver options
 #
 CONFIG_PHY_AUTONEG=y
-CONFIG_NET_EMACRAM_SIZE=7264
+CONFIG_NET_EMACRAM_SIZE=7296
 CONFIG_NET_NTXDESC=6
 CONFIG_NET_NRXDESC=6
 # CONFIG_NET_WOL is not set
diff --git a/configs/olimex-lpc1766stk/nsh/defconfig b/configs/olimex-lpc1766stk/nsh/defconfig
index 00815886726..ef69f217c43 100644
--- a/configs/olimex-lpc1766stk/nsh/defconfig
+++ b/configs/olimex-lpc1766stk/nsh/defconfig
@@ -206,7 +206,7 @@ CONFIG_LPC17_SSP1=y
 # Ethernet driver options
 #
 CONFIG_PHY_AUTONEG=y
-CONFIG_NET_EMACRAM_SIZE=7264
+CONFIG_NET_EMACRAM_SIZE=7296
 CONFIG_NET_NTXDESC=6
 CONFIG_NET_NRXDESC=6
 # CONFIG_NET_WOL is not set
diff --git a/configs/olimex-lpc1766stk/thttpd/defconfig b/configs/olimex-lpc1766stk/thttpd/defconfig
index b8804d6b064..9846b7f2321 100644
--- a/configs/olimex-lpc1766stk/thttpd/defconfig
+++ b/configs/olimex-lpc1766stk/thttpd/defconfig
@@ -206,7 +206,7 @@ CONFIG_LPC17_UART0=y
 # Ethernet driver options
 #
 CONFIG_PHY_AUTONEG=y
-CONFIG_NET_EMACRAM_SIZE=15712
+CONFIG_NET_EMACRAM_SIZE=15776
 CONFIG_NET_NTXDESC=13
 CONFIG_NET_NRXDESC=13
 # CONFIG_NET_WOL is not set
diff --git a/configs/olimex-lpc1766stk/zmodem/defconfig b/configs/olimex-lpc1766stk/zmodem/defconfig
index dc4d6bfd06d..969d8d37b32 100644
--- a/configs/olimex-lpc1766stk/zmodem/defconfig
+++ b/configs/olimex-lpc1766stk/zmodem/defconfig
@@ -207,7 +207,7 @@ CONFIG_LPC17_SSP1=y
 # Ethernet driver options
 #
 CONFIG_PHY_AUTONEG=y
-CONFIG_NET_EMACRAM_SIZE=7264
+CONFIG_NET_EMACRAM_SIZE=7296
 CONFIG_NET_NTXDESC=6
 CONFIG_NET_NRXDESC=6
 # CONFIG_NET_WOL is not set