diff --git a/src/options.c b/src/options.c
index a460ab7..f538f42 100644
--- a/src/options.c
+++ b/src/options.c
@@ -118,6 +118,7 @@ struct option_t option =
     .exclude_drivers = NULL,
     .exclude_tids = NULL,
     .hex_n_value = 0,
+    .vt100 = false,
 };
 
 void print_help(char *argv[])
@@ -487,6 +488,13 @@ void options_parse(int argc, char *argv[])
         option.color = -1;
     }
 
+    // Check for vt100 terminal
+    char *term = getenv("TERM");
+    if ((term != NULL) && (!strcmp(term, "vt100")))
+    {
+        option.vt100 = true;
+    }
+
     while (1)
     {
         static struct option long_options[] =
diff --git a/src/options.h b/src/options.h
index d5a054b..016978d 100644
--- a/src/options.h
+++ b/src/options.h
@@ -95,6 +95,7 @@ struct option_t
     const char *exclude_drivers;
     const char *exclude_tids;
     int hex_n_value;
+    bool vt100;
 };
 
 extern struct option_t option;
diff --git a/src/tty.c b/src/tty.c
index 6be7581..ccbb44d 100644
--- a/src/tty.c
+++ b/src/tty.c
@@ -1067,6 +1067,14 @@ void stdin_configure(void)
 void stdout_restore(void)
 {
     tcsetattr(STDOUT_FILENO, TCSANOW, &stdout_old);
+
+    // If terminal is vt100
+    if (option.vt100)
+    {
+      // Disable DEC Special Graphics character set just in case it was randomly
+      // enabled by noise from serial device.
+      putchar('\017');
+    }
 }
 
 void stdout_configure(void)