diff --git a/devel/mimalloc/Makefile b/devel/mimalloc/Makefile
index 6745df074d87..9d3dce4d27d7 100644
--- a/devel/mimalloc/Makefile
+++ b/devel/mimalloc/Makefile
@@ -1,28 +1,31 @@
 PORTNAME=	mimalloc
 DISTVERSIONPREFIX=	v
 DISTVERSION=	3.4.3
 CATEGORIES=	devel
+MASTER_SITES=	https://github.com/microsoft/${PORTNAME}/releases/download/v${DISTVERSION}/
+DISTNAME=	${PORTNAME}-v${DISTVERSION}-source
 
 MAINTAINER=	ehaupt@FreeBSD.org
 COMMENT=	General-purpose allocator with excellent performance characteristics
 WWW=		https://github.com/microsoft/mimalloc
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 USES=		cmake:testing compiler:c++17-lang pathfix
-USE_GITHUB=	yes
-GH_ACCOUNT=	microsoft
 USE_LDCONFIG=	yes
 
+EXTRACT_AFTER_ARGS=	--strip-components 1 --no-same-permission --no-same-owner
+NO_WRKSUBDIR=	yes
+
 CMAKE_ON=	MI_INSTALL_TOPLEVEL
 CMAKE_OFF=	MI_BUILD_OBJECT MI_BUILD_TESTS
 
 CMAKE_TESTING_ON=	MI_BUILD_TESTS
 
 # ci pipeline creates transient tags
 PORTSCOUT=	ignore:1
 
 PLIST_SUB=	MIMALLOC_LIBVER=${DISTVERSION:R}
 
 .include <bsd.port.mk>
diff --git a/devel/mimalloc/distinfo b/devel/mimalloc/distinfo
index f14e5984ec04..2684f7d9ea53 100644
--- a/devel/mimalloc/distinfo
+++ b/devel/mimalloc/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1785511073
-SHA256 (microsoft-mimalloc-v3.4.3_GH0.tar.gz) = 7b043c26b64dde66344d144fbcac3664858a4eb32197793ea2a18feb32741ca1
-SIZE (microsoft-mimalloc-v3.4.3_GH0.tar.gz) = 1414132
+TIMESTAMP = 1785574309
+SHA256 (mimalloc-v3.4.3-source.tar.gz) = d1d411db107492319940bc2c4a8dcd4ded1f85c8b75128718385698f79722ab4
+SIZE (mimalloc-v3.4.3-source.tar.gz) = 1414955