diff --git a/graphics/drm-510-kmod/Makefile b/graphics/drm-510-kmod/Makefile
--- a/graphics/drm-510-kmod/Makefile
+++ b/graphics/drm-510-kmod/Makefile
@@ -1,8 +1,10 @@
 PORTNAME=	drm-510-kmod
-PORTVERSION=	5.10.163
+PORTVERSION=	${DRM_KMOD_DISTVERSION}
 PORTREVISION=	5
 CATEGORIES=	graphics kld
 
+.include "Makefile.version"
+
 MAINTAINER=	x11@FreeBSD.org
 COMMENT=	DRM drivers modules
 WWW=		https://github.com/freebsd/drm-kmod/
@@ -20,7 +22,7 @@
 USE_GITHUB=	yes
 GH_ACCOUNT=	freebsd
 GH_PROJECT=	drm-kmod
-GH_TAGNAME=	drm_v5.10.163_4
+GH_TAGNAME=	${DRM_KMOD_GH_TAGNAME}
 
 .include <bsd.port.options.mk>
 
diff --git a/graphics/drm-510-kmod/Makefile.version b/graphics/drm-510-kmod/Makefile.version
new file mode 100644
--- /dev/null
+++ b/graphics/drm-510-kmod/Makefile.version
@@ -0,0 +1,5 @@
+# drm-kmod common version definition
+#
+# This will be included from consumers such as nvidia-drm
+DRM_KMOD_DISTVERSION=	5.10.163
+DRM_KMOD_GH_TAGNAME=	drm_v5.10.163_4
diff --git a/graphics/drm-515-kmod/Makefile b/graphics/drm-515-kmod/Makefile
--- a/graphics/drm-515-kmod/Makefile
+++ b/graphics/drm-515-kmod/Makefile
@@ -1,8 +1,10 @@
 PORTNAME=	drm-515-kmod
-PORTVERSION=	5.15.25
+PORTVERSION=	${DRM_KMOD_DISTVERSION}
 PORTREVISION=	2
 CATEGORIES=	graphics kld
 
+.include "Makefile.version"
+
 MAINTAINER=	x11@FreeBSD.org
 COMMENT=	DRM drivers modules
 WWW=		https://github.com/freebsd/drm-kmod/
@@ -20,7 +22,7 @@
 USE_GITHUB=	yes
 GH_ACCOUNT=	freebsd
 GH_PROJECT=	drm-kmod
-GH_TAGNAME=	drm_v5.15.25_4
+GH_TAGNAME=	${DRM_KMOD_GH_TAGNAME}
 
 .include <bsd.port.options.mk>
 
diff --git a/graphics/drm-515-kmod/Makefile.version b/graphics/drm-515-kmod/Makefile.version
new file mode 100644
--- /dev/null
+++ b/graphics/drm-515-kmod/Makefile.version
@@ -0,0 +1,5 @@
+# drm-kmod common version definition
+#
+# This will be included from consumers such as nvidia-drm
+DRM_KMOD_DISTVERSION=	5.15.25
+DRM_KMOD_GH_TAGNAME=	drm_v5.15.25_4