diff --git a/PcAtChipsetPkg/Include/Library/NewLibClass.h b/PcAtChipsetPkg/Include/Library/NewLibClass.h
new file mode 100644
index 00000000000..12115f83a2e
--- /dev/null
+++ b/PcAtChipsetPkg/Include/Library/NewLibClass.h
@@ -0,0 +1 @@
+// Library class include file not declared in DEC file
diff --git a/PcAtChipsetPkg/PcAtChipsetPkg.dec b/PcAtChipsetPkg/PcAtChipsetPkg.dec
index 88de5cceea5..00e5c0ecca8 100644
--- a/PcAtChipsetPkg/PcAtChipsetPkg.dec
+++ b/PcAtChipsetPkg/PcAtChipsetPkg.dec
@@ -144,3 +144,5 @@
 
 [UserExtensions.TianoCore."ExtraFiles"]
   PcAtChipsetPkgExtra.uni
+[LibraryClasses]
+  LibClassWithBadPathLib|Include/Library/IncludeFileNotPresent.h