diff --git a/sys/arm/conf/BWCT b/sys/arm/conf/BWCT
index 314ff9000b27..f23e1895db08 100644
--- a/sys/arm/conf/BWCT
+++ b/sys/arm/conf/BWCT
@@ -41,7 +41,7 @@ options 	SOFTUPDATES		#Enable FFS soft updates support
 #options 	UFS_ACL			#Support for access control lists
 #options 	UFS_DIRHASH		#Improve performance on big directories
 #options 	MD_ROOT			#MD is a potential root device
-#options 	MD_ROOT_SIZE=4096	# 3MB ram disk
+#options 	MD_ROOT_SIZE=4096	# 4MB ram disk
 #options 	ROOTDEVNAME=\"ufs:md0\"
 #options 	ROOTDEVNAME=\"ufs:/dev/mmcsd0s1a\"
 options 	NFSCL			#New Network Filesystem Client
diff --git a/sys/arm/conf/QILA9G20 b/sys/arm/conf/QILA9G20
index b399fcde48c1..4b6079cbae9f 100644
--- a/sys/arm/conf/QILA9G20
+++ b/sys/arm/conf/QILA9G20
@@ -38,7 +38,7 @@ options 	FFS			#Berkeley Fast Filesystem
 #options 	UFS_ACL			#Support for access control lists
 #options 	UFS_DIRHASH		#Improve performance on big directories
 #options 	MD_ROOT			#MD is a potential root device
-#options 	MD_ROOT_SIZE=4096	# 3MB ram disk
+#options 	MD_ROOT_SIZE=4096	# 4MB ram disk
 options 	NFSCL			#New Network Filesystem Client
 #options 	NFSD			#New Network Filesystem Server
 #options 	NFSLOCKD		#Network Lock Manager
diff --git a/sys/arm/conf/SN9G45 b/sys/arm/conf/SN9G45
index 41338ddc5aed..01a3194dd4d0 100644
--- a/sys/arm/conf/SN9G45
+++ b/sys/arm/conf/SN9G45
@@ -37,7 +37,7 @@ options 	FFS			#Berkeley Fast Filesystem
 #options 	UFS_ACL			#Support for access control lists
 #options 	UFS_DIRHASH		#Improve performance on big directories
 #options 	MD_ROOT			#MD is a potential root device
-#options 	MD_ROOT_SIZE=4096	# 3MB ram disk
+#options 	MD_ROOT_SIZE=4096	# 4MB ram disk
 options 	NFSCL			#New Network Filesystem Client
 #options 	NFSD			#New Network Filesystem Server
 #options 	NFSLOCKD		#Network Lock Manager