diff --git a/plat/st/stm32mp1/stm32mp1_private.c b/plat/st/stm32mp1/stm32mp1_private.c
index ae39c0b..e6cb071 100644
--- a/plat/st/stm32mp1/stm32mp1_private.c
+++ b/plat/st/stm32mp1/stm32mp1_private.c
@@ -378,7 +378,7 @@
 
 void stm32mp_get_soc_name(char name[STM32_SOC_NAME_SIZE])
 {
-	char *cpu_s, *cpu_r, *pkg;
+	const char *cpu_s, *cpu_r, *pkg;
 
 	/* MPUs Part Numbers */
 	switch (get_part_number()) {