diff --git a/expanders_init.h b/expanders_init.h
index f4dec2b..0d47d85 100644
--- a/expanders_init.h
+++ b/expanders_init.h
@@ -31,7 +31,7 @@ extern void board_ports_init (void); // default is a weak function
 
 // I2C expanders
 
-#if PCA9654E_ENABLE || MCP3221_ENABLE || MCP4725_ENABLE
+#if PCA9654E_ENABLE || MCP3221_ENABLE || MCP4725_ENABLE || FLEXGPIO_ENABLE
 
 #if defined(I2C_ENABLE) && !I2C_ENABLE
 #undef I2C_ENABLE
@@ -55,6 +55,10 @@ extern void pca9654e_init(void);
 
 // Third party I2C expander plugins goes after this line
 
+#if FLEXGPIO_ENABLE
+extern void flexgpio_init(void);
+#endif
+
 #endif // I2C expanders
 
 // SPI expanders
@@ -117,6 +121,10 @@ static inline void io_expanders_init (void)
     pca9654e_init();
 #endif
 
+#if FLEXGPIO_ENABLE
+    flexgpio_init();
+#endif
+
 #if PICOHAL_IO_ENABLE
     picohal_io_init();
 #endif