diff --git a/man3/strfromd.3 b/man3/strfromd.3
index e451b454c..d75e9ef68 100644
--- a/man3/strfromd.3
+++ b/man3/strfromd.3
@@ -127,13 +127,13 @@ infinity values:
 .RS
 If
 .I fp
-is a NaN, +NaN, or -NaN, and
+is a NaN, +NaN, or \-NaN, and
 .BR f
 (or
 .BR a ,
 .BR e ,
 .BR g )
-is the conversion specifier, the conversion is to "nan", "nan", or "-nan",
+is the conversion specifier, the conversion is to "nan", "nan", or "\-nan",
 respectively.
 If
 .B F
@@ -141,11 +141,11 @@ If
 .BR A ,
 .BR E ,
 .BR G )
-is the conversion specifier, the conversion is to "NAN" or "-NAN".
+is the conversion specifier, the conversion is to "NAN" or "\-NAN".
 .PP
 Likewise if
 .I fp
-is infinity, it is converted to [-]inf or [-]INF.
+is infinity, it is converted to [\-]inf or [\-]INF.
 .RE
 .PP
 A malformed