diff --git a/games/einstein/Makefile b/games/einstein/Makefile
index 7e85082a9e0c..b3136b0bc180 100644
--- a/games/einstein/Makefile
+++ b/games/einstein/Makefile
@@ -14,7 +14,12 @@ COMMENT=	Remake of old DOS game Sherlock, which was inspired by Albert Einstein'
 USE_SDL=	sdl ttf mixer
 WRKSRC=		${WRKDIR}/${PORTNAME}-${PORTVERSION}
 
-NO_STAGE=	yes
+post-patch:
+	${REINPLACE_CMD} \
+		-e "s,@@STAGEDIR@@,${STAGEDIR}," \
+		-e "s,@@PREFIX@@,${PREFIX}," \
+		${WRKSRC}/Makefile
+
 post-install:
 	@${CAT} ${PKGMESSAGE}
 
diff --git a/games/einstein/files/patch-Makefile b/games/einstein/files/patch-Makefile
index 00cbc26156e3..7889aa9bca05 100644
--- a/games/einstein/files/patch-Makefile
+++ b/games/einstein/files/patch-Makefile
@@ -5,7 +5,7 @@
  
  # installation prefix
 -PREFIX=/usr/local
-+#PREFIX=/usr/local
++PREFIX=@@STAGEDIR@@@@PREFIX@@
  
  ########################################
  #