diff --git a/build.sh b/build.sh
index 5a86e856..3971d26c 100755
--- a/build.sh
+++ b/build.sh
@@ -218,7 +218,7 @@ install() {
         esac
     done
 
-    if [ "$MACHINE" != "x86_64" ]]; then
+    if [ "$MACHINE" != "x86_64" ]; then
         # Native libs
         DEFAULTLIB=lib64
     fi