diff --git a/Makefile.in b/Makefile.in
index 7e14ccbe85..823f99cb93 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -223,7 +223,7 @@ lexor_keyword.cc: $(srcdir)/lexor_keyword.gperf
 
 iverilog-vpi.man: $(srcdir)/iverilog-vpi.man.in version.exe
 	./version.exe `head -1 $(srcdir)/iverilog-vpi.man.in`'\n' > $@
-	tail +2 $(srcdir)/iverilog-vpi.man.in >> $@
+	tail -n +2 $(srcdir)/iverilog-vpi.man.in >> $@
 
 iverilog-vpi.ps: iverilog-vpi.man
 	$(MAN) -t iverilog-vpi.man > iverilog-vpi.ps
diff --git a/driver/Makefile.in b/driver/Makefile.in
index 5edfabcf3d..9a8ded7ddf 100644
--- a/driver/Makefile.in
+++ b/driver/Makefile.in
@@ -86,7 +86,7 @@ cflexor.o: cflexor.c cfparse.h
 
 iverilog.man: $(srcdir)/iverilog.man.in ../version.exe
 	../version.exe `head -1 $(srcdir)/iverilog.man.in`'\n' > $@
-	tail +2 $(srcdir)/iverilog.man.in >> $@
+	tail -n +2 $(srcdir)/iverilog.man.in >> $@
 
 iverilog.ps: iverilog.man
 	$(MAN) -t iverilog.man > iverilog.ps
diff --git a/vvp/Makefile.in b/vvp/Makefile.in
index b406d49def..f6e8761af9 100644
--- a/vvp/Makefile.in
+++ b/vvp/Makefile.in
@@ -133,7 +133,7 @@ lexor.cc: $(srcdir)/lexor.lex
 
 vvp.man: $(srcdir)/vvp.man.in ../version.exe
 	../version.exe `head -1 $(srcdir)/vvp.man.in`'\n' > $@
-	tail +2 $(srcdir)/vvp.man.in >> $@
+	tail -n +2 $(srcdir)/vvp.man.in >> $@
 
 vvp.pdf: vvp.man
 	$(MAN) -t $(srcdir)/vvp.man | $(PS2PDF) - vvp.pdf