diff --git a/arch/arm/src/samv7/Kconfig b/arch/arm/src/samv7/Kconfig
index dc0ba0d7077..98a47765bb5 100644
--- a/arch/arm/src/samv7/Kconfig
+++ b/arch/arm/src/samv7/Kconfig
@@ -1376,7 +1376,7 @@ menu "MCAN device driver options"
 
 choice
 	prompt "MCAN clock source (PCK5)"
-	default SAMV7_MCAN_CLKSRC_MAIN
+	default SAMV7_MCAN_CLKSRC_MCK
 
 config SAMV7_MCAN_CLKSRC_SLOW
 	bool "Slow clock"