diff --git a/src/mock.cpp b/src/mock.cpp
index c3c18ce..eee4990 100644
--- a/src/mock.cpp
+++ b/src/mock.cpp
@@ -5,9 +5,14 @@
 #include <sta/debug/spatz.hpp>
 #include <sta/debug/assert.hpp>
 
+#ifndef STA_BMI088_ACC_SPATZ_ID
+#   error "MS56xx acceleration SPATZ ID not defined."
+#endif // !STA_MS56XX_TEMPERATURE_SPATZ_ID
+
+#ifndef STA_BMI088_GYRO_SPATZ_ID
+#   error "MS56xx gyroscope SPATZ ID not defined."
+#endif // !STA_MS56XX_PRESSURE_SPATZ_ID
 
-#define STA_BMI088_ACC_SPATZ_ID         3
-#define STA_BMI088_GYRO_SPATZ_ID        4
 
 namespace sta
 {
@@ -100,4 +105,4 @@ namespace sta
     }
 } // namespace sta
 
-#endif // STA_SPATZ_ENABLED
\ No newline at end of file
+#endif // STA_SPATZ_ENABLED