diff --git a/plat/st/stm32mp1/stm32mp1_def.h b/plat/st/stm32mp1/stm32mp1_def.h
index 31f80d9..d869978 100644
--- a/plat/st/stm32mp1/stm32mp1_def.h
+++ b/plat/st/stm32mp1/stm32mp1_def.h
@@ -614,7 +614,12 @@
  * Device Tree defines
  ******************************************************************************/
 #define DT_BSEC_COMPAT			"st,stm32mp15-bsec"
+#if STM32MP13
+#define DT_DDR_COMPAT			"st,stm32mp13-ddr"
+#endif
+#if STM32MP15
 #define DT_DDR_COMPAT			"st,stm32mp1-ddr"
+#endif
 #define DT_IWDG_COMPAT			"st,stm32mp1-iwdg"
 #define DT_NVMEM_LAYOUT_COMPAT		"st,stm32-nvmem-layout"
 #define DT_PWR_COMPAT			"st,stm32mp1,pwr-reg"