diff --git a/src/TpsParser/TpsBlock.cs b/src/TpsParser/TpsBlock.cs
index d43c3f3..67c2c0f 100644
--- a/src/TpsParser/TpsBlock.cs
+++ b/src/TpsParser/TpsBlock.cs
@@ -157,7 +157,7 @@ private static bool IsCompletePage(TpsRandomAccess rx)
 
             if (offset < pageSize)
             {
-                int address = BinaryPrimitives.ReadInt32LittleEndian(span[offset..]);
+                int address = BinaryPrimitives.ReadInt32BigEndian(span[offset..]);
 
                 if (address == position)
                 {
diff --git a/tests/TpsParser.Tests/ResourceTests/TestCompletePageIssue-11.cs b/tests/TpsParser.Tests/ResourceTests/TestCompletePageIssue-11.cs
new file mode 100644
index 0000000..ed345b3
--- /dev/null
+++ b/tests/TpsParser.Tests/ResourceTests/TestCompletePageIssue-11.cs
@@ -0,0 +1,51 @@
+using NUnit.Framework;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+
+namespace TpsParser.Tests.ResourceTests;
+
+internal sealed class TestCompletePageIssue_11
+{
+    [Test]
+    [Description("Issue #11 - IsCompletePage address check should read an Int32BE, not Int32LE.")]
+    public void ShouldReadCompletePages()
+    {
+        using var fs = new FileStream("Resources/CompletePageIssue-11.tps", FileMode.Open, FileAccess.Read);
+
+        var tpsFile = new TpsFile(fs);
+
+        IEnumerable<TpsBlock>? blocks = null;
+
+        Assert.DoesNotThrow(() =>
+        {
+            blocks = tpsFile.GetBlocks();
+        });
+
+        if (blocks is null)
+        {
+            Assert.Fail();
+            return;
+        }
+
+        var singleBlock = blocks.Single();
+
+        var pages = singleBlock.GetPages();
+
+        var singlePage = pages.Single();
+
+        using (Assert.EnterMultipleScope())
+        {
+            Assert.That(singlePage.AbsoluteAddress, Is.EqualTo(512));
+            Assert.That(singlePage.Flags, Is.Zero);
+            Assert.That(singlePage.RecordCount, Is.EqualTo(9));
+            Assert.That(singlePage.Size, Is.EqualTo(1526));
+            Assert.That(singlePage.SizeUncompressed, Is.EqualTo(2119));
+            Assert.That(singlePage.SizeUncompressedExpanded, Is.EqualTo(2161));
+
+            var records = singlePage.GetRecords(tpsFile.ErrorHandlingOptions);
+
+            Assert.That(records, Has.Count.EqualTo(9));
+        }
+    }
+}
diff --git a/tests/TpsParser.Tests/Resources/CompletePageIssue-11.tps b/tests/TpsParser.Tests/Resources/CompletePageIssue-11.tps
new file mode 100644
index 0000000..8a2b718
Binary files /dev/null and b/tests/TpsParser.Tests/Resources/CompletePageIssue-11.tps differ