diff --git a/platform/util/src/com/intellij/openapi/util/text/StringUtil.java b/platform/util/src/com/intellij/openapi/util/text/StringUtil.java
index 043d2c58cf51..fa6acd5d09b4 100644
--- a/platform/util/src/com/intellij/openapi/util/text/StringUtil.java
+++ b/platform/util/src/com/intellij/openapi/util/text/StringUtil.java
@@ -1558,7 +1558,7 @@ public class StringUtil extends StringUtilRt {
       sb.insert(0, units[i]).insert(0, count);
     }
     else if (remainder > 0) {
-      sb.append(String.format("%.2f", count + (double)remainder / multipliers[i - 1])).append(units[i]);
+      sb.append(String.format(Locale.US, "%.2f", count + (double)remainder / multipliers[i - 1])).append(units[i]);
     }
     return sb.toString();
   }