diff --git a/conf/machine/am3517-evm.conf b/conf/machine/am3517-evm.conf
index e8170694..536d337c 100644
--- a/conf/machine/am3517-evm.conf
+++ b/conf/machine/am3517-evm.conf
@@ -19,7 +19,7 @@ require conf/machine/include/omap3.inc
 IMAGE_FSTYPES += "ubi tar.gz"
 EXTRA_IMAGECMD_jffs2 = "-lnp -e 0x20000 -s 2048"
 
-SERIAL_CONSOLE = "115200 ttyS2"
+SERIAL_CONSOLE = "115200 ttyO2"
 USE_VT = "2"
 
 PREFERRED_PROVIDER_virtual/kernel = "linux-omap-psp"
diff --git a/conf/machine/am37x-evm.conf b/conf/machine/am37x-evm.conf
index 9a1acb45..866abc58 100644
--- a/conf/machine/am37x-evm.conf
+++ b/conf/machine/am37x-evm.conf
@@ -19,7 +19,7 @@ require conf/machine/include/omap3.inc
 IMAGE_FSTYPES += "ubi tar.gz"
 EXTRA_IMAGECMD_jffs2 = "-lnp -e 0x20000 -s 2048"
 
-SERIAL_CONSOLE = "115200 ttyS0"
+SERIAL_CONSOLE = "115200 ttyO0"
 
 PREFERRED_PROVIDER_virtual/kernel = "linux-omap-psp"