diff --git a/OvmfPkg/Library/PlatformDebugLibIoPort/PlatformDebugLibIoPort.inf b/OvmfPkg/Library/PlatformDebugLibIoPort/PlatformDebugLibIoPort.inf
index de3c2f542b..baa90a3d43 100644
--- a/OvmfPkg/Library/PlatformDebugLibIoPort/PlatformDebugLibIoPort.inf
+++ b/OvmfPkg/Library/PlatformDebugLibIoPort/PlatformDebugLibIoPort.inf
@@ -31,6 +31,7 @@
 [Sources]
   DebugLib.c
   DebugLibDetect.c
+  DebugLibDetect.h
 
 [Packages]
   MdePkg/MdePkg.dec
diff --git a/OvmfPkg/Library/PlatformDebugLibIoPort/PlatformRomDebugLibIoPort.inf b/OvmfPkg/Library/PlatformDebugLibIoPort/PlatformRomDebugLibIoPort.inf
index 491c0318de..f95a105864 100644
--- a/OvmfPkg/Library/PlatformDebugLibIoPort/PlatformRomDebugLibIoPort.inf
+++ b/OvmfPkg/Library/PlatformDebugLibIoPort/PlatformRomDebugLibIoPort.inf
@@ -30,6 +30,7 @@
 
 [Sources]
   DebugLib.c
+  DebugLibDetect.h
   DebugLibDetectRom.c
 
 [Packages]