diff --git a/picocom.1.md b/picocom.1.md
index c147243..ccc2695 100644
--- a/picocom.1.md
+++ b/picocom.1.md
@@ -96,7 +96,7 @@ here.
 
 :   Toggle the RTS line. If RTS is up, then lower it. If it is down,
     then raise it. Not supported if the flow control mode is RTS/CTS.
-    Only supported in Linux and macOS.
+    Only supported in Linux, FreeBSD and macOS.
 
 **C-backslash**
 
@@ -367,15 +367,15 @@ Picocom accepts the following command-line options.
 **--lower-rts**
 
 :   Lower the RTS control signal after opening the serial port (by
-    default RTS is raised after open). Only supported when
+    default RTS is raised after open on many OS). Only supported when
     flow-control mode is not set to RTS/CTS, ignored otherwise. Only
-    supported in Linux and macOS.
+    supported in Linux, FreeBSD and macOS.
 
 **--lower-dtr**
 
 :   Lower the DTR control signal after opening the serial port (by
-    default DTR is raised after open). Only supported in Linux and
-    macOS.
+    default DTR is raised after open on many OS). Only supported in
+    Linux, FreeBSD and macOS.
 
 **--exit-aftrer** | **-x**
 
diff --git a/term.c b/term.c
index 8ecfaf4..0d00a33 100644
--- a/term.c
+++ b/term.c
@@ -52,7 +52,11 @@
 #define CMSPAR 0
 #endif
 
-#if defined(__linux__) || defined(__APPLE__)
+
+#if defined(__linux__) || defined(__FreeBSD__) || defined(__APPLE__)
+#define USE_IOCTL
+#endif
+#ifdef USE_IOCTL
 #include <sys/ioctl.h>
 #endif
 
@@ -1309,7 +1313,7 @@ term_pulse_dtr (int fd)
             break;
         }
 
-#if defined(__linux__) || defined(__APPLE__)
+#ifdef USE_IOCTL
         {
             int opins = TIOCM_DTR;
 
@@ -1361,7 +1365,7 @@ term_pulse_dtr (int fd)
                 break;
             }
         }
-#endif /* of __linux__ or __APPLE__ */
+#endif /* of USE_IOCTL */
 
     } while (0);
 
@@ -1385,7 +1389,7 @@ term_raise_dtr(int fd)
             break;
         }
 
-#if defined(__linux__) || defined(__APPLE__)
+#ifdef USE_IOCTL
         {
             int opins = TIOCM_DTR;
 
@@ -1404,7 +1408,7 @@ term_raise_dtr(int fd)
             rval = -1;
             break;
         }
-#endif /* of __linux__ or __APPLE__ */
+#endif /* of USE_IOCTL */
     } while (0);
 
     return rval;
@@ -1428,7 +1432,7 @@ term_lower_dtr(int fd)
             break;
         }
 
-#if defined(__linux__) || defined(__APPLE__)
+#ifdef USE_IOCTL
         {
             int opins = TIOCM_DTR;
 
@@ -1461,7 +1465,7 @@ term_lower_dtr(int fd)
                 break;
             }
         }
-#endif /* of __linux__ or __APPLE__ */
+#endif /* of USE_IOCTL */
     } while (0);
 
     return rval;
@@ -1484,7 +1488,7 @@ term_raise_rts(int fd)
             break;
         }
 
-#if defined(__linux__) || defined(__APPLE__)
+#ifdef USE_IOCTL
         {
             int r;
             int opins = TIOCM_RTS;
@@ -1499,7 +1503,7 @@ term_raise_rts(int fd)
 #else
         term_errno = TERM_ERTSUP;
         rval = -1;
-#endif /* of __linux__ or __APPLE__ */
+#endif /* of USE_IOCTL */
     } while (0);
 
     return rval;
@@ -1522,7 +1526,7 @@ term_lower_rts(int fd)
             break;
         }
 
-#if defined(__linux__) || defined(__APPLE__)
+#ifdef USE_IOCTL
         {
             int r;
             int opins = TIOCM_RTS;
@@ -1537,7 +1541,7 @@ term_lower_rts(int fd)
 #else
         term_errno = TERM_ERTSDOWN;
         rval = -1;
-#endif /* of __linux__ or __APPLE__ */
+#endif /* of USE_IOCTL */
     } while (0);
 
     return rval;
@@ -1559,7 +1563,7 @@ term_get_mctl (int fd)
             break;
         }
 
-#if defined(__linux__) || defined(__APPLE__)
+#ifdef USE_IOCTL
         {
             int r, pmctl;
 
@@ -1578,7 +1582,7 @@ term_get_mctl (int fd)
         }
 #else
         mctl = MCTL_UNAVAIL;
-#endif /* of __linux__ or __APPLE__ */
+#endif /* of USE_IOCTL */
     } while(0);
 
     return mctl;