diff --git a/docs/CHANGELOG.txt b/docs/CHANGELOG.txt
index 28e4ab272..435057852 100644
--- a/docs/CHANGELOG.txt
+++ b/docs/CHANGELOG.txt
@@ -50,6 +50,8 @@ Other Changes:
   pointer, which could to issue when deleting the cloned list. (#8894, #1860)
 - Debug Tools: ID Stack Tool: fixed using fixed-size buffers preventing long identifiers
   from being displayed in the tool. (#8905, #4631)
+- Debug Tools: ID Stack Tool: when ### is used, uncontributing prefix before the ###
+  is now skipped. (#8904, #4631)
 - Debug Tools: ID Stack Tool: added option to hex-encode non-ASCII characters in
   output path. (#8904, #4631)
 - Examples: Android: Android+OpenGL3: update Gradle project (#8888, #8878) [@scribam]
diff --git a/imgui.cpp b/imgui.cpp
index 57ea52195..16ae8d123 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -17733,14 +17733,14 @@ static int StackToolFormatLevelInfo(ImGuiIDStackTool* tool, int n, bool format_f
     ImGuiStackLevelInfo* info = &tool->Results[n];
     ImGuiWindow* window = (info->DescOffset == -1 && n == 0) ? ImGui::FindWindowByID(info->ID) : NULL;
     if (window)                                                                 // Source: window name (because the root ID don't call GetID() and so doesn't get hooked)
-        return ImFormatString(buf, buf_size, format_for_ui ? "\"%s\" [window]" : "%s", window->Name);
+        return ImFormatString(buf, buf_size, format_for_ui ? "\"%s\" [window]" : "%s", ImHashSkipUncontributingPrefix(window->Name));
     if (info->QuerySuccess)                                                     // Source: GetID() hooks (prioritize over ItemInfo() because we frequently use patterns like: PushID(str), Button("") where they both have same id)
-        return ImFormatString(buf, buf_size, (format_for_ui && info->DataType == ImGuiDataType_String) ? "\"%s\"" : "%s", &tool->ResultPathsBuf.Buf[info->DescOffset]);
+        return ImFormatString(buf, buf_size, (format_for_ui && info->DataType == ImGuiDataType_String) ? "\"%s\"" : "%s", ImHashSkipUncontributingPrefix(&tool->ResultPathsBuf.Buf[info->DescOffset]));
     if (tool->StackLevel < tool->Results.Size)                                  // Only start using fallback below when all queries are done, so during queries we don't flickering ??? markers.
         return (*buf = 0);
 #ifdef IMGUI_ENABLE_TEST_ENGINE
     if (const char* label = ImGuiTestEngine_FindItemDebugLabel(GImGui, info->ID))   // Source: ImGuiTestEngine's ItemInfo()
-        return ImFormatString(buf, buf_size, format_for_ui ? "??? \"%s\"" : "%s", label);
+        return ImFormatString(buf, buf_size, format_for_ui ? "??? \"%s\"" : "%s", ImHashSkipUncontributingPrefix(label));
 #endif
     return ImFormatString(buf, buf_size, "???");
 }