diff --git a/libs/libc/machine/arm/armv8-r/Kconfig b/libs/libc/machine/arm/armv8-r/Kconfig
index 5f2e2ad1b87..8324fa0de76 100644
--- a/libs/libc/machine/arm/armv8-r/Kconfig
+++ b/libs/libc/machine/arm/armv8-r/Kconfig
@@ -8,9 +8,9 @@ config ARMV8R_STRING_FUNCTION
 	default n
 	depends on ARCH_TOOLCHAIN_GNU
 	select ARMV8R_MEMCHR
-	select ARMV8R_MEMCPY
+	select ARMV8R_MEMCPY if ARM_NEON
 	select ARMV8R_MEMMOVE
-	select ARMV8R_MEMSET
+	select ARMV8R_MEMSET if ARM_NEON
 	select ARMV8R_STRCMP
 	select ARMV8R_STRLEN
 
@@ -19,6 +19,7 @@ config ARMV8R_MEMCHR
 	default n
 	select LIBC_ARCH_MEMCHR
 	depends on ARCH_TOOLCHAIN_GNU
+	depends on ARM_NEON
 	---help---
 		Enable optimized ARMv8-R specific memchr() library function