diff --git a/Configurations/15-android.conf b/Configurations/15-android.conf
index c94da41231..7b496a4529 100644
--- a/Configurations/15-android.conf
+++ b/Configurations/15-android.conf
@@ -24,7 +24,8 @@
 
             my $ndk_var;
             my $ndk;
-            foreach $ndk_var (qw(ANDROID_NDK_HOME ANDROID_NDK)) {
+            foreach (qw(ANDROID_NDK_HOME ANDROID_NDK)) {
+                $ndk_var = $_;
                 $ndk = $ENV{$ndk_var};
                 last if defined $ndk;
             }