diff --git a/dlls/msi/msi.spec b/dlls/msi/msi.spec
index 6aa8957d5fe..39908498db0 100644
--- a/dlls/msi/msi.spec
+++ b/dlls/msi/msi.spec
@@ -256,7 +256,7 @@
 260 stub MsiSourceListClearAllExW
 261 stub MsiSourceListForceResolutionExA
 262 stub MsiSourceListForceResolutionExW
-263 stub MsiSourceListEnumSourcesA
+263 stdcall MsiSourceListEnumSourcesA(str str long long long ptr ptr)
 264 stub MsiSourceListEnumSourcesW
 265 stdcall MsiSourceListGetInfoA(str str long long str ptr ptr)
 266 stub MsiSourceListGetInfoW
diff --git a/dlls/msi/source.c b/dlls/msi/source.c
index 975b0f27bc5..69f10f31f39 100644
--- a/dlls/msi/source.c
+++ b/dlls/msi/source.c
@@ -168,6 +168,19 @@ static UINT find_given_source(HKEY key, LPCWSTR szSource, media_info *ss)
     return rc;
 }
 
+/******************************************************************
+ *  MsiSourceListEnumSourcesA   (MSI.@)
+ */
+UINT WINAPI MsiSourceListEnumSourcesA(LPCSTR szProductCodeOrPatch, LPCSTR szUserSid,
+                                      MSIINSTALLCONTEXT dwContext,
+                                      DWORD dwOptions, DWORD dwIndex,
+                                      LPSTR szSource, LPDWORD pcchSource)
+{
+    FIXME("(%s, %s, %d, %d, %d, %p, %p): stub!\n", szProductCodeOrPatch, szUserSid,
+          dwContext, dwOptions, dwIndex, szSource, pcchSource);
+    return ERROR_CALL_NOT_IMPLEMENTED;
+}
+
 /******************************************************************
  *  MsiSourceListGetInfoA   (MSI.@)
  */