diff --git a/meta/classes/populate_sdk_base.bbclass b/meta/classes/populate_sdk_base.bbclass
index dc715c4..ac34c32 100644
--- a/meta/classes/populate_sdk_base.bbclass
+++ b/meta/classes/populate_sdk_base.bbclass
@@ -119,9 +119,9 @@ fakeroot create_shar() {
 #!/bin/bash
 
 INST_ARCH=$(uname -m | sed -e "s/i[3-6]86/ix86/" -e "s/x86[-_]64/x86_64/")
-SDKMACHINE=$(echo ${SDKMACHINE} | sed -e "s/i[5-6]86/ix86/")
+SDK_ARCH=$(echo ${SDK_ARCH} | sed -e "s/i[5-6]86/ix86/")
 
-if [ "$INST_ARCH" != "$SDKMACHINE" ]; then
+if [ "$INST_ARCH" != "$SDK_ARCH" ]; then
 	echo "Error: Installation machine not supported!"
 	exit -1
 fi