diff --git a/1.x/trunk/CHANGELOG.txt b/1.x/trunk/CHANGELOG.txt
index 1a2d37efc..a7ee44559 100644
--- a/1.x/trunk/CHANGELOG.txt
+++ b/1.x/trunk/CHANGELOG.txt
@@ -5,6 +5,7 @@ Process Hacker
    * System Idle Process threads are shown
  * FIXED:
    * #2926287 - "Scroll Problems with Microsoft Intellipoint Mouse"
+   * Major process properties memory leak
 
 1.10
  * NEW/IMPROVED:
diff --git a/1.x/trunk/ProcessHacker/Forms/ProcessWindow.cs b/1.x/trunk/ProcessHacker/Forms/ProcessWindow.cs
index 1bc82e61d..15857d367 100644
--- a/1.x/trunk/ProcessHacker/Forms/ProcessWindow.cs
+++ b/1.x/trunk/ProcessHacker/Forms/ProcessWindow.cs
@@ -397,7 +397,10 @@ namespace ProcessHacker
 
             // Remove the process handle from the shared waiter.
             if (_processHandle != null)
+            {
                 Program.SharedWaiter.Remove(_processHandle);
+                Program.SharedWaiter.ObjectSignaled -= SharedWaiter_ObjectSignaled;
+            }
 
             if (_processImage != null)
             {