diff --git a/targets/TARGET_STM/TARGET_STM32G4/objects.h b/targets/TARGET_STM/TARGET_STM32G4/objects.h
index 201d6671dd..647c45253d 100644
--- a/targets/TARGET_STM/TARGET_STM32G4/objects.h
+++ b/targets/TARGET_STM/TARGET_STM32G4/objects.h
@@ -155,6 +155,19 @@ struct trng_s {
     RNG_HandleTypeDef handle;
 };
 
+#if DEVICE_QSPI
+struct qspi_s {
+    QSPI_HandleTypeDef handle;
+    QSPIName qspi;
+    PinName io0;
+    PinName io1;
+    PinName io2;
+    PinName io3;
+    PinName sclk;
+    PinName ssel;
+};
+#endif
+
 //#include "common_objects.h"
 #include "gpio_object.h"