diff --git a/driver/iverilog.man b/driver/iverilog.man
index 07e0b40ff..e1237b5da 100644
--- a/driver/iverilog.man
+++ b/driver/iverilog.man
@@ -4,10 +4,10 @@ iverilog - Icarus Verilog compiler
 
 .SH SYNOPSIS
 .B iverilog
-[-ESVv] [-Bpath] [-ccmdfile|-fcmdfile] [-Dmacro[=defn]] [-pflag=value]
-[-dname] [-g1995|-g2001|-g2005|-g<feature>]
-[-Iincludedir] [-mmodule] [-Mfile] [-Nfile] [-ooutputfilename]
-[-stopmodule] [-ttype] [-Tmin/typ/max] [-Wclass] [-ypath] sourcefile
+[\-ESVv] [\-Bpath] [\-ccmdfile|\-fcmdfile] [\-Dmacro[=defn]] [\-pflag=value]
+[\-dname] [\-g1995|\-g2001|\-g2005|\-g<feature>]
+[\-Iincludedir] [\-mmodule] [\-Mfile] [\-Nfile] [\-ooutputfilename]
+[\-stopmodule] [\-ttype] [\-Tmin/typ/max] [\-Wclass] [\-ypath] sourcefile
 
 .SH DESCRIPTION
 .PP
@@ -18,7 +18,6 @@ simulation, and \fIfpga\fP for synthesis. Other target
 types are added as code generators are implemented.
 
 .SH OPTIONS
-.l
 \fIiverilog\fP accepts the following options:
 .TP 8
 .B -B\fIbase\fP
@@ -364,7 +363,7 @@ on to the next library directory.
 
 .TP 8
 .B +libdir+\fIdir\fP
-This is another way to specify library directories. See the -y flag.
+This is another way to specify library directories. See the \-y flag.
 
 .TP 8
 .B +libdir-nocase+\fIdir\fP
@@ -429,11 +428,11 @@ To compile hello.v to an executable file called a.out:
 
 To compile hello.v to an executable file called hello:
 
-	iverilog -o hello hello.v
+	iverilog \-o hello hello.v
 
 To compile and run explicitly using the vvp runtime:
 
-	iverilog -ohello.vvp -tvvp hello.v
+	iverilog \-ohello.vvp \-tvvp hello.v
 
 .SH "AUTHOR"
 .nf
diff --git a/iverilog-vpi.man b/iverilog-vpi.man
index 5cfd082ba..7ac940daf 100644
--- a/iverilog-vpi.man
+++ b/iverilog-vpi.man
@@ -4,7 +4,7 @@ iverilog-vpi - Compile front end for VPI modules
 
 .SH SYNOPSIS
 .B iverilog-vpi
-[--name=\fIname\fP]
+[\-\-name=\fIname\fP]
 \fIsourcefile\fP...
 
 .SH DESCRIPTION
@@ -20,7 +20,6 @@ first source file is named \fIfoo.c\fP, the output becomes
 \fIfoo.vpi\fP.
 
 .SH OPTIONS
-.l
 \fIiverilog-vpi\fP accepts the following options:
 .TP 8
 .B -l\fIlibrary\fP
@@ -104,9 +103,9 @@ requests a 32bit vpi binary instead of the default 64bit binary.
 .P
 Example GNU makefile that takes advantage of these flags:
 .IP "" 4
-CFLAGS = -Wall -O $(CFLAGS_$@)
+CFLAGS = \-Wall \-O $(CFLAGS_$@)
 .br
-VPI_CFLAGS := $(shell iverilog-vpi --cflags)
+VPI_CFLAGS := $(shell iverilog-vpi \-\-cflags)
 .br
 CFLAGS_messagev.o = $(VPI_CFLAGS)
 .br
diff --git a/vvp/vvp.man b/vvp/vvp.man
index 3cb2d8ffc..3c98e3fe1 100644
--- a/vvp/vvp.man
+++ b/vvp/vvp.man
@@ -4,7 +4,7 @@ vvp - Icarus Verilog vvp runtime engine
 
 .SH SYNOPSIS
 .B vvp
-[-sv] [-Mpath] [-mmodule] [-llogfile] inputfile [extended-args...]
+[\-sv] [\-Mpath] [\-mmodule] [\-llogfile] inputfile [extended-args...]
 
 .SH DESCRIPTION
 .PP
@@ -14,7 +14,6 @@ command is not by itself executable on any platform. Instead, the
 \fIvvp\fP program is invoked to execute the generated output file.
 
 .SH OPTIONS
-.l
 \fIvvp\fP accepts the following options:
 .TP 8
 .B -l\fIlogfile\fP
@@ -116,7 +115,7 @@ to print information about the annotation.
 
 .TP 8
 .B -sdf-verbose
-This is shorthand for -sdf-info -sdf-warn.
+This is shorthand for \-sdf\-info \-sdf\-warn.
 
 .SH ENVIRONMENT
 .PP