diff --git a/logback-classic/src/main/java/ch/qos/logback/classic/encoder/JsonEncoder.java b/logback-classic/src/main/java/ch/qos/logback/classic/encoder/JsonEncoder.java
index e3925a1013..c6a0ed73d9 100644
--- a/logback-classic/src/main/java/ch/qos/logback/classic/encoder/JsonEncoder.java
+++ b/logback-classic/src/main/java/ch/qos/logback/classic/encoder/JsonEncoder.java
@@ -87,6 +87,7 @@ public class JsonEncoder extends EncoderBase<ILoggingEvent> {
     private static final String LINE_NUMBER_ATTR_NAME = "lineNumber";
 
     public static final String STEP_ARRAY_NAME_ATTRIBUTE = "stepArray";
+    public static final String STACKTRACE_NAME_ATTRIBUTE = "stackTrace";
 
     private static final char OPEN_OBJ = '{';
     private static final char CLOSE_OBJ = '}';
@@ -122,7 +123,7 @@ public class JsonEncoder extends EncoderBase<ILoggingEvent> {
     private boolean withMessage = true;
     private boolean withArguments = true;
     private boolean withThrowable = true;
-    private boolean withOriginalStackTrace = false;
+    private boolean withPlainStackTrace = false;
     private boolean withFormattedMessage = false;
 
 
@@ -268,8 +269,8 @@ private void appendThrowableProxy(StringBuilder sb, String attributeName, IThrow
         }
 
         sb.append(VALUE_SEPARATOR);
-        if (withOriginalStackTrace) {
-            appenderMember(sb, "stackTrace", getOriginalStackTrace(itp));
+        if (withPlainStackTrace) {
+            appenderMember(sb, STACKTRACE_NAME_ATTRIBUTE, getOriginalStackTrace(itp));
         } else {
             appendSTEPArray(sb, itp.getStackTraceElementProxyArray(), itp.getCommonFrames());
         }
@@ -279,7 +280,7 @@ private void appendThrowableProxy(StringBuilder sb, String attributeName, IThrow
             appenderMemberWithIntValue(sb, COMMON_FRAMES_COUNT_ATTR_NAME, itp.getCommonFrames());
         }
 
-        if (!withOriginalStackTrace) {
+        if (!withPlainStackTrace) {
             IThrowableProxy cause = itp.getCause();
             if (cause != null) {
                 sb.append(VALUE_SEPARATOR);
@@ -323,7 +324,7 @@ private static void getOriginalStackTrace(IThrowableProxy throwable, StringBuild
         }
         sb.append(throwable.getClassName()).append(": ").append(throwable.getMessage()).append(NEWLINE);
         for (StackTraceElementProxy step : throwable.getStackTraceElementProxyArray()) {
-            sb.append(TAB).append(step).append(NEWLINE);
+            sb.append(TAB).append(step.getSTEAsString()).append(NEWLINE);
         }
         getOriginalStackTrace(throwable.getCause(), sb, depth + 1);
     }
@@ -543,11 +544,11 @@ public void setWithThrowable(boolean withThrowable) {
     }
 
     /**
-     * @param withOriginalStackTrace
+     * @param withPlainStackTrace
      * @since 1.5.7
      */
-    public void setWithOriginalStackTrace(boolean withOriginalStackTrace) {
-        this.withOriginalStackTrace = withOriginalStackTrace;
+    public void setWithPlainStackTrace(boolean withPlainStackTrace) {
+        this.withPlainStackTrace = withPlainStackTrace;
     }
 
     public void setWithFormattedMessage(boolean withFormattedMessage) {
diff --git a/logback-classic/src/test/java/ch/qos/logback/classic/encoder/JsonEncoderTest.java b/logback-classic/src/test/java/ch/qos/logback/classic/encoder/JsonEncoderTest.java
index 92a7e7e462..c9fe07043f 100644
--- a/logback-classic/src/test/java/ch/qos/logback/classic/encoder/JsonEncoderTest.java
+++ b/logback-classic/src/test/java/ch/qos/logback/classic/encoder/JsonEncoderTest.java
@@ -258,11 +258,11 @@ void withThrowable() throws JsonProcessingException {
     }
 
     @Test
-    void withOriginalStackTrace() throws IOException {
+    void withPlainStackTrace() throws IOException {
         Throwable t = new RuntimeException("test", new IllegalStateException("test cause"));
         LoggingEvent event = new LoggingEvent("in withThrowable test", logger, Level.WARN, "hello kvp", t, null);
 
-        jsonEncoder.setWithOriginalStackTrace(true);
+        jsonEncoder.setWithPlainStackTrace(true);
         byte[] resultBytes = jsonEncoder.encode(event);
         String resultString = new String(resultBytes, StandardCharsets.UTF_8).trim();