diff --git a/test/test-functions b/test/test-functions
index 58685526c2..47a4fa8111 100644
--- a/test/test-functions
+++ b/test/test-functions
@@ -102,7 +102,7 @@ function find_qemu_bin() {
         [ "$QEMU_BIN" ] || QEMU_BIN=$(which -a qemu 2>/dev/null | grep '^/' -m1)
         ;;
     ppc64*)
-        [ "$QEMU_BIN" ] || QEMU_BIN=$(which -a qemu-system-$ARCH 2>/dev/null | grep '^/' -m1)
+        [ "$QEMU_BIN" ] || QEMU_BIN=$(which -a qemu-system-ppc64 2>/dev/null | grep '^/' -m1)
         ;;
     esac