diff --git a/dlls/msi/msi.c b/dlls/msi/msi.c
index 0d58d3c95c0..a7ed9308b97 100644
--- a/dlls/msi/msi.c
+++ b/dlls/msi/msi.c
@@ -1752,3 +1752,25 @@ UINT WINAPI MsiReinstallFeatureA( LPCSTR szProduct, LPCSTR szFeature,
                            dwReinstallMode);
     return ERROR_SUCCESS;
 }
+
+/***********************************************************************
+ * MsiEnumPatchesA            [MSI.@]
+ */
+UINT WINAPI MsiEnumPatchesA( LPCSTR szProduct, DWORD iPatchIndex, 
+        LPSTR lpPatchBuf, LPSTR lpTransformsBuf, DWORD* pcchTransformsBuf)
+{
+    FIXME("%s %ld %p %p %p\n", debugstr_a(szProduct),
+          iPatchIndex, lpPatchBuf, lpTransformsBuf, pcchTransformsBuf);
+    return ERROR_NO_MORE_ITEMS;
+}
+
+/***********************************************************************
+ * MsiEnumPatchesW            [MSI.@]
+ */
+UINT WINAPI MsiEnumPatchesW( LPCWSTR szProduct, DWORD iPatchIndex, 
+        LPWSTR lpPatchBuf, LPWSTR lpTransformsBuf, DWORD* pcchTransformsBuf)
+{
+    FIXME("%s %ld %p %p %p\n", debugstr_w(szProduct),
+          iPatchIndex, lpPatchBuf, lpTransformsBuf, pcchTransformsBuf);
+    return ERROR_NO_MORE_ITEMS;
+}
diff --git a/dlls/msi/msi.spec b/dlls/msi/msi.spec
index f3815037988..e1ce430112b 100644
--- a/dlls/msi/msi.spec
+++ b/dlls/msi/msi.spec
@@ -173,8 +173,8 @@
 177 stub MsiAdvertiseScriptW
 178 stub MsiGetPatchInfoA
 179 stub MsiGetPatchInfoW
-180 stub MsiEnumPatchesA
-181 stub MsiEnumPatchesW
+180 stdcall MsiEnumPatchesA(str long ptr ptr ptr)
+181 stdcall MsiEnumPatchesW(str long ptr ptr ptr)
 182 stdcall -private DllGetVersion(ptr)
 183 stub MsiGetProductCodeFromPackageCodeA
 184 stub MsiGetProductCodeFromPackageCodeW
diff --git a/include/msi.h b/include/msi.h
index a6260a226cf..8285d88e927 100644
--- a/include/msi.h
+++ b/include/msi.h
@@ -522,6 +522,10 @@ UINT WINAPI MsiSourceListAddMediaDiskA(LPCSTR, LPCSTR, MSIINSTALLCONTEXT, DWORD,
 UINT WINAPI MsiSourceListAddMediaDiskW(LPCWSTR, LPCWSTR, MSIINSTALLCONTEXT, DWORD, DWORD, LPCWSTR, LPCWSTR);
 #define     MsiSourceListAddMediaDisk WINELIB_NAME_AW(MsiSourceListAddMediaDisk)
 
+UINT WINAPI MsiEnumPatchesA(LPCSTR, DWORD, LPSTR, LPSTR, DWORD*);
+UINT WINAPI MsiEnumPatchesW(LPCWSTR, DWORD, LPWSTR, LPWSTR, DWORD*);
+#define     MsiEnumPatches WINELIB_NAME_AW(MsiEnumPatches)
+
 /* Non Unicode */
 UINT WINAPI MsiCloseHandle(MSIHANDLE);
 UINT WINAPI MsiCloseAllHandles(void);