diff --git a/bsps/arm/stm32h7/boards/stm/stm32h750b-dk/system_stm32h7xx.c b/bsps/arm/stm32h7/boards/stm/stm32h750b-dk/system_stm32h7xx.c
index 8f1da2d238..11d99c4707 100644
--- a/bsps/arm/stm32h7/boards/stm/stm32h750b-dk/system_stm32h7xx.c
+++ b/bsps/arm/stm32h7/boards/stm/stm32h750b-dk/system_stm32h7xx.c
@@ -481,7 +481,12 @@ void SystemInit_ExtMemCtl(void)
   for (index = 0; index<1000; index++);
 
   /* PALL command */
+#ifdef __rtems__
+  /* Fix misleading indentation */
+  FMC_Bank5_6_R->SDCMR = 0x0000000A;
+#else
     FMC_Bank5_6_R->SDCMR = 0x0000000A;
+#endif
   timeout = 0xFFFF;
   while((tmpreg != 0) && (timeout-- > 0))
   {