diff --git a/Include/WinVer.nsh b/Include/WinVer.nsh
index a0ee54c4..831b97fb 100644
--- a/Include/WinVer.nsh
+++ b/Include/WinVer.nsh
@@ -405,28 +405,30 @@
 
 # service pack macros
 
-!macro _WinVer_GetServicePackLevel
-  !insertmacro _LOGICLIB_TEMP
+!macro _WinVer_GetServicePackLevel OUTVAR
   ${CallArtificialFunction} __WinVer_InitVars
-  IntOp $_LOGICLIB_TEMP $__WINVERSP & ${_WINVER_MASKSP}
-  IntOp $_LOGICLIB_TEMP $_LOGICLIB_TEMP >> 16
+  IntOp ${OUTVAR} $__WINVERSP & ${_WINVER_MASKSP}
+  IntOp ${OUTVAR} ${OUTVAR} >> 16
 !macroend
 !define WinVerGetServicePackLevel '!insertmacro _WinVer_GetServicePackLevel '
 
 !macro _AtLeastServicePack _a _b _t _f
-  ${WinVerGetServicePackLevel}
+  !insertmacro _LOGICLIB_TEMP
+  ${WinVerGetServicePackLevel} $_LOGICLIB_TEMP
   !insertmacro _>= $_LOGICLIB_TEMP `${_b}` `${_t}` `${_f}`
 !macroend
 !define AtLeastServicePack `"" AtLeastServicePack`
 
 !macro _AtMostServicePack _a _b _t _f
-  ${WinVerGetServicePackLevel}
+  !insertmacro _LOGICLIB_TEMP
+  ${WinVerGetServicePackLevel} $_LOGICLIB_TEMP
   !insertmacro _<= $_LOGICLIB_TEMP `${_b}` `${_t}` `${_f}`
 !macroend
 !define AtMostServicePack `"" AtMostServicePack`
 
 !macro _IsServicePack _a _b _t _f
-  ${WinVerGetServicePackLevel}
+  !insertmacro _LOGICLIB_TEMP
+  ${WinVerGetServicePackLevel} $_LOGICLIB_TEMP
   !insertmacro _= $_LOGICLIB_TEMP `${_b}` `${_t}` `${_f}`
 !macroend
 !define IsServicePack `"" IsServicePack`
diff --git a/Source/Tests/winver.nsi b/Source/Tests/winver.nsi
index bf74f01f..6537ec76 100644
--- a/Source/Tests/winver.nsi
+++ b/Source/Tests/winver.nsi
@@ -239,11 +239,11 @@ Var OSVERSIONINFOEX_INIT
 	${OrIf} ${IsServicePack} $0
 	${OrIf} ${IsServicePack} $1
 
-		!insertmacro _WinVer_GetServicePackLevel
+		${WinVerGetServicePackLevel} $2
 
 		DetailPrint "Service pack detection failed for ${NAME}"
 		DetailPrint "   Expected: ${SP}"
-		DetailPrint "   Got: $_LOGICLIB_TEMP"
+		DetailPrint "   Got: $2"
 
 		StrCpy $R0 "FAILURE"