1 files changed, 2 insertions, 1 deletions
diff --git a/ide_common/src/com/android/ide/common/resources/configuration/LanguageQualifier.java b/ide_common/src/com/android/ide/common/resources/configuration/LanguageQualifier.java
index ff18bdc..972a50f 100644
--- a/ide_common/src/com/android/ide/common/resources/configuration/LanguageQualifier.java
+++ b/ide_common/src/com/android/ide/common/resources/configuration/LanguageQualifier.java
@@ -16,6 +16,7 @@
 
 package com.android.ide.common.resources.configuration;
 
+import java.util.Locale;
 import java.util.regex.Pattern;
 
 /**
@@ -51,7 +52,7 @@ public final class LanguageQualifier extends ResourceQualifier {
      * @param value the value of the qualifier, as returned by {@link #getValue()}.
      */
     public static String getFolderSegment(String value) {
-        String segment = value.toLowerCase();
+        String segment = value.toLowerCase(Locale.US);
         if (sLanguagePattern.matcher(segment).matches()) {
             return segment;
         }