diff --git a/dlls/setupapi/setupapi.spec b/dlls/setupapi/setupapi.spec
index 2c6672dce7c..ed917747480 100644
--- a/dlls/setupapi/setupapi.spec
+++ b/dlls/setupapi/setupapi.spec
@@ -454,7 +454,7 @@
 @ stdcall SetupOpenMasterInf()
 @ stub SetupPromptForDiskA
 @ stub SetupPromptForDiskW
-@ stub SetupPromptReboot
+@ stdcall SetupPromptReboot(ptr ptr long)
 @ stub SetupQueryDrivesInDiskSpaceListA
 @ stub SetupQueryDrivesInDiskSpaceListW
 @ stub SetupQueryFileLogA
diff --git a/dlls/setupapi/stubs.c b/dlls/setupapi/stubs.c
index faf6a1f919f..1ab79da47d0 100644
--- a/dlls/setupapi/stubs.c
+++ b/dlls/setupapi/stubs.c
@@ -200,3 +200,12 @@ BOOL WINAPI SetupOpenLog(BOOL Reserved)
     FIXME("(%d) stub\n", Reserved);
     return TRUE;
 }
+
+/***********************************************************************
+ *      SetupPromptReboot(SETUPAPI.@)
+ */
+INT WINAPI SetupPromptReboot( HSPFILEQ file_queue, HWND owner, BOOL scan_only )
+{
+    FIXME("%p, %p, %d\n", file_queue, owner, scan_only);
+    return 0;
+}
diff --git a/include/setupapi.h b/include/setupapi.h
index d27cb9f4ca6..7fd1099442a 100644
--- a/include/setupapi.h
+++ b/include/setupapi.h
@@ -851,6 +851,7 @@ HINF     WINAPI SetupOpenInfFileA( PCSTR name, PCSTR pszclass, DWORD style, UINT
 HINF     WINAPI SetupOpenInfFileW( PCWSTR name, PCWSTR pszclass, DWORD style, UINT *error );
 #define         SetupOpenInfFile WINELIB_NAME_AW(SetupOpenInfFile)
 HINF     WINAPI SetupOpenMasterInf( VOID );
+INT      WINAPI SetupPromptReboot( HSPFILEQ, HWND, BOOL);
 BOOL     WINAPI SetupQueryInfFileInformationA(PSP_INF_INFORMATION, UINT, PSTR, DWORD, PDWORD);
 BOOL     WINAPI SetupQueryInfFileInformationW(PSP_INF_INFORMATION, UINT, PWSTR, DWORD, PDWORD);
 #define         SetupQueryInfFileInformation WINELIB_NAME_AW(SetupQueryInFileInformation)