diff --git a/dlls/psapi/psapi.spec b/dlls/psapi/psapi.spec
index a7066af0a60..e9bc146e35c 100644
--- a/dlls/psapi/psapi.spec
+++ b/dlls/psapi/psapi.spec
@@ -10,8 +10,8 @@
 @ stdcall GetDeviceDriverFileNameW(ptr wstr long)
 @ stdcall GetMappedFileNameA(long ptr str long)
 @ stdcall GetMappedFileNameW(long ptr wstr long)
-@ stdcall GetModuleBaseNameA(long long str long)
-@ stdcall GetModuleBaseNameW(long long wstr long)
+@ stdcall GetModuleBaseNameA(long long ptr long)
+@ stdcall GetModuleBaseNameW(long long ptr long)
 @ stdcall GetModuleFileNameExA(long long str long)
 @ stdcall GetModuleFileNameExW(long long wstr long)
 @ stdcall GetModuleInformation(long long ptr long)