diff --git a/Makefile.in b/Makefile.in
index 9d594101e..5eafb9673 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -282,8 +282,8 @@ iverilog-vpi.man: $(srcdir)/iverilog-vpi.man.in version.exe
 	./version.exe `head -1 $<`'\n' > $@
 	tail -n +2 $< >> $@
 
-iverilog-vpi.ps: ./iverilog-vpi.man
-	$(MAN) -t $< > $@
+iverilog-vpi.ps: iverilog-vpi.man
+	$(MAN) -t ./$< > $@
 
 iverilog-vpi.pdf: iverilog-vpi.ps
 	$(PS2PDF) $< $@
@@ -291,7 +291,7 @@ iverilog-vpi.pdf: iverilog-vpi.ps
 iverilog_man.ps: driver/iverilog.man vvp/vvp.man iverilog-vpi.man
 	$(GROFF) -man -rC1 -rD1 -T ps $^ > $@
 
-iverilog_man.pdf: iverilog_man.ps ./version.exe
+iverilog_man.pdf: iverilog_man.ps version.exe
 	$(PS2PDF) $< $@
 	cp $@ iverilog_man_`./version.exe %M_%n`.pdf
 
diff --git a/driver/Makefile.in b/driver/Makefile.in
index 77c776406..3e8f40b04 100644
--- a/driver/Makefile.in
+++ b/driver/Makefile.in
@@ -106,8 +106,8 @@ iverilog.man: $(srcdir)/iverilog.man.in ../version.exe
 	../version.exe `head -1 $<`'\n' > $@
 	tail -n +2 $< >> $@
 
-iverilog.ps: ./iverilog.man
-	$(MAN) -t $< > $@
+iverilog.ps: iverilog.man
+	$(MAN) -t ./$< > $@
 
 iverilog.pdf: iverilog.ps
 	$(PS2PDF) $< $@
diff --git a/vvp/Makefile.in b/vvp/Makefile.in
index 7df910a37..3996ee567 100644
--- a/vvp/Makefile.in
+++ b/vvp/Makefile.in
@@ -189,8 +189,8 @@ vvp.man: $(srcdir)/vvp.man.in ../version.exe
 	../version.exe `head -1 $<`'\n' > $@
 	tail -n +2 $< >> $@
 
-vvp.ps: ./vvp.man
-	$(MAN) -t $< > $@
+vvp.ps: vvp.man
+	$(MAN) -t ./$< > $@
 
 vvp.pdf: vvp.ps
 	$(PS2PDF) $< $@