diff --git a/dlls/api-ms-win-appmodel-runtime-l1-1-1/api-ms-win-appmodel-runtime-l1-1-1.spec b/dlls/api-ms-win-appmodel-runtime-l1-1-1/api-ms-win-appmodel-runtime-l1-1-1.spec
index 4d2edd60f5a..4c00082a151 100644
--- a/dlls/api-ms-win-appmodel-runtime-l1-1-1/api-ms-win-appmodel-runtime-l1-1-1.spec
+++ b/dlls/api-ms-win-appmodel-runtime-l1-1-1/api-ms-win-appmodel-runtime-l1-1-1.spec
@@ -9,7 +9,7 @@
 @ stub GetCurrentPackageInfo
 @ stub GetCurrentPackagePath
 @ stub GetPackageApplicationIds
-@ stub GetPackageFamilyName
+@ stdcall GetPackageFamilyName(long ptr ptr) kernel32.GetPackageFamilyName
 @ stdcall GetPackageFullName(long ptr ptr) kernel32.GetPackageFullName
 @ stub GetPackageId
 @ stub GetPackageInfo
diff --git a/dlls/ext-ms-win-kernel32-package-l1-1-1/ext-ms-win-kernel32-package-l1-1-1.spec b/dlls/ext-ms-win-kernel32-package-l1-1-1/ext-ms-win-kernel32-package-l1-1-1.spec
index ae239528b3f..214cd344716 100644
--- a/dlls/ext-ms-win-kernel32-package-l1-1-1/ext-ms-win-kernel32-package-l1-1-1.spec
+++ b/dlls/ext-ms-win-kernel32-package-l1-1-1/ext-ms-win-kernel32-package-l1-1-1.spec
@@ -7,7 +7,7 @@
 @ stub AppXLookupMoniker
 @ stub ClosePackageInfo
 @ stub FormatApplicationUserModelId
-@ stub GetPackageFamilyName
+@ stdcall GetPackageFamilyName(long ptr ptr) kernel32.GetPackageFamilyName
 @ stdcall GetPackageFullName(long ptr ptr) kernel32.GetPackageFullName
 @ stub GetPackageId
 @ stub GetPackageInfo
diff --git a/dlls/kernel32/kernel32.spec b/dlls/kernel32/kernel32.spec
index 1a6fdbab018..8645d48d773 100644
--- a/dlls/kernel32/kernel32.spec
+++ b/dlls/kernel32/kernel32.spec
@@ -762,6 +762,7 @@
 @ stdcall -import GetOverlappedResult(long ptr ptr long)
 @ stdcall -import GetOverlappedResultEx(long ptr ptr long long)
 @ stdcall -import GetUserPreferredUILanguages(long ptr ptr ptr)
+@ stdcall GetPackageFamilyName(long ptr ptr) kernelbase.GetPackageFamilyName
 @ stdcall GetPackageFullName(long ptr ptr) kernelbase.GetPackageFullName
 @ stdcall -import GetPhysicallyInstalledSystemMemory(ptr)
 @ stdcall -import GetPriorityClass(long)
diff --git a/dlls/kernelbase/kernelbase.spec b/dlls/kernelbase/kernelbase.spec
index 986cd851ed3..10de1821d1c 100644
--- a/dlls/kernelbase/kernelbase.spec
+++ b/dlls/kernelbase/kernelbase.spec
@@ -591,7 +591,7 @@
 # @ stub GetPackageApplicationPropertyString
 # @ stub GetPackageApplicationResourcesContext
 # @ stub GetPackageContext
-# @ stub GetPackageFamilyName
+@ stdcall GetPackageFamilyName(long ptr ptr)
 # @ stub GetPackageFamilyNameFromToken
 @ stdcall GetPackageFullName(long ptr ptr)
 # @ stub GetPackageFullNameFromToken
diff --git a/dlls/kernelbase/version.c b/dlls/kernelbase/version.c
index d6d3237270c..58c49aa148b 100644
--- a/dlls/kernelbase/version.c
+++ b/dlls/kernelbase/version.c
@@ -1544,3 +1544,13 @@ LONG WINAPI /* DECLSPEC_HOTPATCH */ GetPackageFullName( HANDLE process, UINT32 *
     FIXME( "(%p %p %p): stub\n", process, length, name );
     return APPMODEL_ERROR_NO_PACKAGE;
 }
+
+
+/***********************************************************************
+ *         GetPackageFamilyName   (kernelbase.@)
+ */
+LONG WINAPI /* DECLSPEC_HOTPATCH */ GetPackageFamilyName( HANDLE process, UINT32 *length, WCHAR *name )
+{
+    FIXME( "(%p %p %p): stub\n", process, length, name );
+    return APPMODEL_ERROR_NO_PACKAGE;
+}