diff --git a/math/pcalc/Makefile b/math/pcalc/Makefile
index 9951dd1e6d45..e94bc0e45d8d 100644
--- a/math/pcalc/Makefile
+++ b/math/pcalc/Makefile
@@ -1,31 +1,31 @@
 PORTNAME=	pcalc
 DISTVERSIONPREFIX=	v
 DISTVERSION=	5
 CATEGORIES=	math
 
 MAINTAINER=	me@pacopascal.com
 COMMENT=	Command line util for doing hex/dec/oct/bin math quickly
 WWW=		https://vapier.github.io/pcalc/
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 USES=		bison gmake
 USE_GITHUB=	yes
 GH_ACCOUNT=	vapier
 
 PORTDOCS=	EXAMPLE README.md SYNTAX.md
 OPTIONS_DEFINE=	DOCS
 
 PLIST_FILES=	bin/pcalc
 
 TEST_TARGET=	check
 
-post-install:
-	@${STRIP_CMD} ${STAGEDIR}${PREFIX}/bin/pcalc
-
 do-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
-	cd ${WRKSRC} && ${INSTALL_MAN} ${PORTDOCS} ${STAGEDIR}${DOCSDIR}
+	cd ${WRKSRC} && ${INSTALL_DATA} ${PORTDOCS} ${STAGEDIR}${DOCSDIR}
+
+post-install:
+	@${STRIP_CMD} ${STAGEDIR}${PREFIX}/bin/pcalc
 
 .include <bsd.port.mk>
diff --git a/math/pcalc/files/patch-Makefile b/math/pcalc/files/patch-Makefile
index 1cf450c6cc57..8693b6228cec 100644
--- a/math/pcalc/files/patch-Makefile
+++ b/math/pcalc/files/patch-Makefile
@@ -1,24 +1,24 @@
 --- Makefile.orig	2022-02-23 04:42:33 UTC
 +++ Makefile
 @@ -23,6 +23,8 @@ pcalc: LDFLAGS += $(CFLAGS)
  pcalc: $(OBJS)
  pcalc: LDFLAGS += $(CFLAGS)
  
 +$(OBJS): pcalc.c
 +
  pcalc.c: pcalc.y
  	$(YACC) -o $@ $<
  
 @@ -39,10 +41,10 @@ INSTALL = install
  	$(MAKE) -C ptest check
  
  INSTALL = install
 -BINDIR  = /usr/bin
-+BINDIR  = /usr/local/bin
++BINDIR  = $(PREFIX)/bin
  DESTDIR = 
  install:
 -	$(INSTALL) -m 755 -D pcalc $(DESTDIR)$(BINDIR)/pcalc
-+	$(INSTALL) -m 755 -D $(DESTDIR)$(BINDIR) pcalc $(DESTDIR)$(BINDIR)/pcalc
++	$(BSD_INSTALL_PROGRAM) pcalc $(DESTDIR)$(BINDIR)/pcalc
  
  dist pack: distclean
  	rm -rf pcalc-$(VERSION)