diff --git a/os/hal/ports/STM32/LLD/RNGv1/hal_trng_lld.c b/os/hal/ports/STM32/LLD/RNGv1/hal_trng_lld.c
index c81e433f6..3c80ebfc6 100644
--- a/os/hal/ports/STM32/LLD/RNGv1/hal_trng_lld.c
+++ b/os/hal/ports/STM32/LLD/RNGv1/hal_trng_lld.c
@@ -82,6 +82,12 @@ void trng_lld_init(void) {
  */
 void trng_lld_start(TRNGDriver *trngp) {
 
+#if !defined(STM32_DISABLE_RNG_CLOCK_CHECK)
+  osalDbgAssert(((STM32_RNGCLK >= 47000000) && (STM32_RNGCLK <= 49000000)) ||
+                ((STM32_RNGCLK >= 3500000)  && (STM32_RNGCLK <= 4500000)),
+                "invalid RNG frequency");
+#endif
+
   /* There is no real configuration but setting up a valid pointer anyway.*/
   if (trngp->config == NULL) {
     trngp->config = &default_cfg;
diff --git a/os/hal/ports/STM32/LLD/RNGv1/hal_trng_lld.h b/os/hal/ports/STM32/LLD/RNGv1/hal_trng_lld.h
index 2a1e9ba46..a7c069049 100644
--- a/os/hal/ports/STM32/LLD/RNGv1/hal_trng_lld.h
+++ b/os/hal/ports/STM32/LLD/RNGv1/hal_trng_lld.h
@@ -85,14 +85,6 @@
 #error "STM32_RNGCLK not defined in this HAL"
 #endif
 
-#if ((STM32_RNGCLK < 47000000) || (STM32_RNGCLK > 49000000)) &&             \
-    ((STM32_RNGCLK < 3500000)  || (STM32_RNGCLK > 4500000))
-#if !defined(STM32_DISABLE_RNG_CLOCK_CHECK)
-#error "STM32_RNGCLK is not within a tested clock range"
-#error "define STM32_DISABLE_RNG_CLOCK_CHECK to override this check"
-#endif
-#endif
-
 /*===========================================================================*/
 /* Driver data structures and types.                                         */
 /*===========================================================================*/