diff --git a/Makefile b/Makefile
index 06303122c..bde53c971 100644
--- a/Makefile
+++ b/Makefile
@@ -44,9 +44,17 @@ _CORE_NEXT=	${CORE_ABI:C/\./ /}
 .if ${_CORE_NEXT:[2]} == 7
 CORE_NEXT!=	expr ${_CORE_NEXT:[1]} + 1
 CORE_NEXT:=	${CORE_NEXT}.1
-.else
+.elif ${_CORE_NEXT:[2]} == 10
+CORE_NEXT!=	expr ${_CORE_NEXT:[1]} + 1
+CORE_NEXT:=	${CORE_NEXT}.4
+.elif ${_CORE_NEXT:[2]} == 1
 CORE_NEXT=	${_CORE_NEXT:[1]}
 CORE_NEXT:=	${CORE_NEXT}.7
+.elif ${_CORE_NEXT:[2]} == 4
+CORE_NEXT=	${_CORE_NEXT:[1]}
+CORE_NEXT:=	${CORE_NEXT}.10
+.else
+.error Unknown ABI minor version: ${_CORE_NEXT:[2]}
 .endif
 
 .if exists(${GIT}) && exists(${GITVERSION}) && exists(${.CURDIR}/.git)