diff --git a/scripts/runqemu b/scripts/runqemu
index 433ceb7e35..30fd0697c6 100755
--- a/scripts/runqemu
+++ b/scripts/runqemu
@@ -23,10 +23,6 @@ fi
 
 PATH=$BUILDDIR/tmp/staging/$BUILD_SYS/bin:$BUILDDIR/tmp/cross/bin:$PATH
 
-if [ -z "$QEMU_MEMORY" ]; then
-    QEMU_MEMORY="64M"
-fi
-
 if [ "x$1" = "x" ]; then
     echo
     echo "Run as $0 MACHINE IMAGETYPE ZIMAGE IMAGEFILE"
@@ -96,7 +92,8 @@ else
     echo "Warning: distccd not present, no distcc support loaded"
 fi
 
-source $OEROOT/scripts/runqemu-internal
+INTERNAL_SCRIPT=`which runqemu-internal`
+source $INTERNAL_SCRIPT
 
 if [ -x "$DISTCCD" ]; then
     killall distccd
diff --git a/scripts/runqemu-internal b/scripts/runqemu-internal
old mode 100644
new mode 100755
diff --git a/scripts/runqemu-standalone b/scripts/runqemu-standalone
index 6e8218331e..08829e933f 100755
--- a/scripts/runqemu-standalone
+++ b/scripts/runqemu-standalone
@@ -40,5 +40,6 @@ if [ "x$MACHINE" = "x" ]; then
     MACHINE=`basename $ZIMAGE | sed -e 's#.*-\([a-z]*\)-*[0-9]*..*#\1#'`
 fi
 
-source $OEROOT/scripts/runqemu-internal
+INTERNAL_SCRIPT=`which runqemu-internal`
+source $INTERNAL_SCRIPT