diff --git a/math/openblas/Makefile b/math/openblas/Makefile
index a99d38d0b98d..316164a21f74 100644
--- a/math/openblas/Makefile
+++ b/math/openblas/Makefile
@@ -54,7 +54,7 @@ OPTIONS_DEFAULT_amd64=	DYNAMIC_ARCH
 OPTIONS_DEFAULT_powerpc64le=	DYNAMIC_ARCH
 .endif
 
-DYNAMIC_ARCH_DESC=	Support multiple CPU types on i386 and amd64
+DYNAMIC_ARCH_DESC=	Optimize for multiple CPU types, otherwise for this CPU
 INTERFACE64_DESC=	Use 8 byte integers on 64-bit architectures
 OPENMP_DESC=		Use OpenMP for threading
 AVX_DESC=		Support Advanced Vector Extensions (AVX)
@@ -86,10 +86,6 @@ USE_GCC=		yes
 
 MAXTHREADS?=	64
 
-.if ! ${PORT_OPTIONS:MDYNAMIC_ARCH} && ( ${ARCH} == "amd64" || ${ARCH} == "i386" || ${ARCH} == "powerpc64le")
-MANUAL_PACKAGE_BUILD=	Optimizes for the build machine.
-.endif
-
 .include <bsd.port.pre.mk>
 
 post-extract: