diff --git a/teavm-classlib/src/main/java/org/teavm/classlib/java/lang/TAbstractStringBuilder.java b/teavm-classlib/src/main/java/org/teavm/classlib/java/lang/TAbstractStringBuilder.java
index 72314d460..9c81a0eb3 100644
--- a/teavm-classlib/src/main/java/org/teavm/classlib/java/lang/TAbstractStringBuilder.java
+++ b/teavm-classlib/src/main/java/org/teavm/classlib/java/lang/TAbstractStringBuilder.java
@@ -693,7 +693,7 @@ class TAbstractStringBuilder extends TObject implements TSerializable, TCharSequ
     }
 
     public TAbstractStringBuilder delete(int start, int end) {
-        if (start > end || start >= length) {
+        if (start > end || start > length) {
             throw new TStringIndexOutOfBoundsException();
         }
         if (start == end) {
diff --git a/teavm-classlib/src/test/java/org/teavm/classlib/java/lang/StringBuilderTest.java b/teavm-classlib/src/test/java/org/teavm/classlib/java/lang/StringBuilderTest.java
index 2aa07ca1c..df50934c8 100644
--- a/teavm-classlib/src/test/java/org/teavm/classlib/java/lang/StringBuilderTest.java
+++ b/teavm-classlib/src/test/java/org/teavm/classlib/java/lang/StringBuilderTest.java
@@ -310,6 +310,13 @@ public class StringBuilderTest {
         assertEquals('9', sb.charAt(7));
     }
 
+    @Test
+    public void deletesNothing() {
+        StringBuilder sb = new StringBuilder();
+        sb.delete(0, 0);
+        assertEquals(0, sb.length());
+    }
+
     @Test
     public void replacesRangeWithSequenceOfSameLength() {
         StringBuilder sb = new StringBuilder();