diff --git a/src/fsfw/FSFW.h.in b/src/fsfw/FSFW.h.in
index f0eb9365..96460ae4 100644
--- a/src/fsfw/FSFW.h.in
+++ b/src/fsfw/FSFW.h.in
@@ -16,6 +16,11 @@
 #cmakedefine FSFW_ADD_MONITORING
 #cmakedefine FSFW_ADD_SGP4_PROPAGATOR
 
+// Can be used for low-level debugging of the SPI bus
+#ifndef FSFW_HAL_SPI_WIRETAPPING
+#define FSFW_HAL_SPI_WIRETAPPING      0
+#endif
+
 #ifndef FSFW_HAL_L3GD20_GYRO_DEBUG
 #define FSFW_HAL_L3GD20_GYRO_DEBUG   0
 #endif /* FSFW_HAL_L3GD20_GYRO_DEBUG */