diff --git a/targets/TARGET_NUVOTON/TARGET_M251/spi_api.c b/targets/TARGET_NUVOTON/TARGET_M251/spi_api.c
index d8e9d378ac..ce879d13b7 100644
--- a/targets/TARGET_NUVOTON/TARGET_M251/spi_api.c
+++ b/targets/TARGET_NUVOTON/TARGET_M251/spi_api.c
@@ -23,6 +23,7 @@
 #include "cmsis.h"
 #include "pinmap.h"
 #include "PeripheralPins.h"
+#include "gpio_api.h"
 #include "nu_modutil.h"
 #include "nu_miscutil.h"
 #include "nu_bitutil.h"
diff --git a/targets/TARGET_NUVOTON/TARGET_M261/spi_api.c b/targets/TARGET_NUVOTON/TARGET_M261/spi_api.c
index ebf7da50f2..265ac7f43d 100644
--- a/targets/TARGET_NUVOTON/TARGET_M261/spi_api.c
+++ b/targets/TARGET_NUVOTON/TARGET_M261/spi_api.c
@@ -23,6 +23,7 @@
 #include "mbed_error.h"
 #include "pinmap.h"
 #include "PeripheralPins.h"
+#include "gpio_api.h"
 #include "nu_modutil.h"
 #include "nu_miscutil.h"
 #include "nu_bitutil.h"
diff --git a/targets/TARGET_NUVOTON/TARGET_M451/spi_api.c b/targets/TARGET_NUVOTON/TARGET_M451/spi_api.c
index 8b2de0ed2e..ef0101e8fa 100644
--- a/targets/TARGET_NUVOTON/TARGET_M451/spi_api.c
+++ b/targets/TARGET_NUVOTON/TARGET_M451/spi_api.c
@@ -21,6 +21,7 @@
 #include "cmsis.h"
 #include "pinmap.h"
 #include "PeripheralPins.h"
+#include "gpio_api.h"
 #include "nu_modutil.h"
 #include "nu_miscutil.h"
 #include "nu_bitutil.h"
diff --git a/targets/TARGET_NUVOTON/TARGET_NANO100/spi_api.c b/targets/TARGET_NUVOTON/TARGET_NANO100/spi_api.c
index 3862edf516..d77e0864ca 100644
--- a/targets/TARGET_NUVOTON/TARGET_NANO100/spi_api.c
+++ b/targets/TARGET_NUVOTON/TARGET_NANO100/spi_api.c
@@ -21,6 +21,7 @@
 #include "cmsis.h"
 #include "pinmap.h"
 #include "PeripheralPins.h"
+#include "gpio_api.h"
 #include "nu_modutil.h"
 #include "nu_miscutil.h"
 #include "nu_bitutil.h"
diff --git a/targets/TARGET_NUVOTON/TARGET_NUC472/spi_api.c b/targets/TARGET_NUVOTON/TARGET_NUC472/spi_api.c
index ddcf800de5..38c4ed2e24 100644
--- a/targets/TARGET_NUVOTON/TARGET_NUC472/spi_api.c
+++ b/targets/TARGET_NUVOTON/TARGET_NUC472/spi_api.c
@@ -21,6 +21,7 @@
 #include "cmsis.h"
 #include "pinmap.h"
 #include "PeripheralPins.h"
+#include "gpio_api.h"
 #include "nu_modutil.h"
 #include "nu_miscutil.h"
 #include "nu_bitutil.h"