diff --git a/ports/zephyr/prj.conf b/ports/zephyr/prj.conf
index 6046690197..d3983fcc25 100644
--- a/ports/zephyr/prj.conf
+++ b/ports/zephyr/prj.conf
@@ -8,7 +8,7 @@ CONFIG_UART_CONSOLE_DEBUG_SERVER_HOOKS=y
 
 CONFIG_CONSOLE_SUBSYS=y
 CONFIG_CONSOLE_GETCHAR=y
-CONFIG_CONSOLE_GETCHAR_BUFSIZE=128
+CONFIG_CONSOLE_GETCHAR_BUFSIZE=258
 CONFIG_CONSOLE_PUTCHAR_BUFSIZE=128
 
 CONFIG_NEWLIB_LIBC=y
diff --git a/ports/zephyr/prj_minimal.conf b/ports/zephyr/prj_minimal.conf
index 806e26af77..2c89a02fae 100644
--- a/ports/zephyr/prj_minimal.conf
+++ b/ports/zephyr/prj_minimal.conf
@@ -6,7 +6,7 @@ CONFIG_POLL=y
 CONFIG_UART_INTERRUPT_DRIVEN=y
 CONFIG_CONSOLE_SUBSYS=y
 CONFIG_CONSOLE_GETCHAR=y
-CONFIG_CONSOLE_GETCHAR_BUFSIZE=32
+CONFIG_CONSOLE_GETCHAR_BUFSIZE=258
 CONFIG_CONSOLE_PUTCHAR_BUFSIZE=32
 # TODO: Disable once https://github.com/zephyrproject-rtos/zephyr/pull/13731 is merged
 #CONFIG_CONSOLE=n