diff --git a/xchange-okex/src/main/java/org/knowm/xchange/okex/service/OkexCandleStickPeriodType.java b/xchange-okex/src/main/java/org/knowm/xchange/okex/service/OkexCandleStickPeriodType.java
index 3e7496ce955..8ef56d905f2 100644
--- a/xchange-okex/src/main/java/org/knowm/xchange/okex/service/OkexCandleStickPeriodType.java
+++ b/xchange-okex/src/main/java/org/knowm/xchange/okex/service/OkexCandleStickPeriodType.java
@@ -1,39 +1,39 @@
 package org.knowm.xchange.okex.service;
 
 public enum OkexCandleStickPeriodType {
-  CANDLE_STICK_1M(1, "1m"),
-  CANDLE_STICK_3M(3, "3m"),
-  CANDLE_STICK_5M(5, "5m"),
-  CANDLE_STICK_15M(15, "15m"),
-  CANDLE_STICK_30M(30, "30m"),
-  CANDLE_STICK_1H(60, "1H"),
-  CANDLE_STICK_2H(2 * 60, "2H"),
-  CANDLE_STICK_4H(4 * 60, "4H");
-  private final long periodInSecs;
-  private final String fieldValue;
-  OkexCandleStickPeriodType(long periodInMinutes, String fieldValue) {
-    this.periodInSecs = periodInMinutes * 1000;
-    this.fieldValue = fieldValue;
-  }
-  static OkexCandleStickPeriodType getPeriodTypeFromSecs(long periodInSecs) {
-    OkexCandleStickPeriodType result = null;
-    for (OkexCandleStickPeriodType period : OkexCandleStickPeriodType.values()) {
-      if (period.periodInSecs == periodInSecs) {
-          result = period;
-          break;
-      }
+    CANDLE_STICK_1M(1, "1m"),
+    CANDLE_STICK_3M(3, "3m"),
+    CANDLE_STICK_5M(5, "5m"),
+    CANDLE_STICK_15M(15, "15m"),
+    CANDLE_STICK_30M(30, "30m"),
+    CANDLE_STICK_1H(60, "1H"),
+    CANDLE_STICK_2H(2 * 60, "2H"),
+    CANDLE_STICK_4H(4 * 60, "4H");
+    private final long periodInSecs;
+    private final String fieldValue;
+    OkexCandleStickPeriodType(long periodInMinutes, String fieldValue) {
+        this.periodInSecs = periodInMinutes * 60;
+        this.fieldValue = fieldValue;
     }
-    return result;
-  }
-  public static long[] getSupportedPeriodsInSecs() {
-    long[] result = new long[OkexCandleStickPeriodType.values().length];
-    int index = 0;
-    for (OkexCandleStickPeriodType period : OkexCandleStickPeriodType.values()) {
-      result[index++] = period.periodInSecs;
+    static OkexCandleStickPeriodType getPeriodTypeFromSecs(long periodInSecs) {
+        OkexCandleStickPeriodType result = null;
+        for (OkexCandleStickPeriodType period : OkexCandleStickPeriodType.values()) {
+            if (period.periodInSecs == periodInSecs) {
+                result = period;
+                break;
+            }
+        }
+        return result;
     }
-    return result;
-  }
-  public String getFieldValue() {
-    return fieldValue;
-  }
-}
+    public static long[] getSupportedPeriodsInSecs() {
+        long[] result = new long[OkexCandleStickPeriodType.values().length];
+        int index = 0;
+        for (OkexCandleStickPeriodType period : OkexCandleStickPeriodType.values()) {
+            result[index++] = period.periodInSecs;
+        }
+        return result;
+    }
+    public String getFieldValue() {
+        return fieldValue;
+    }
+}
\ No newline at end of file