diff --git a/README.md b/README.md
index c8ecfdba..793ccced 100644
--- a/README.md
+++ b/README.md
@@ -536,7 +536,7 @@ By default in OpenBSD & FreeBSD, `stty` maps <kbd>^Y</kbd> to `DSUSP`. This mean
 
 In order to disable opening files on accidental navigation key (<kbd>→</kbd> or <kbd>l</kbd>) press:
 
-    export DISABLE_FILE_OPEN_ON_NAV=1
+    export NNN_NO_FILE_OPEN_ON_NAV=1
 
 Use <kbd>Enter</kbd> to open files.
 
diff --git a/nnn.1 b/nnn.1
index 4a824a1f..afefc08f 100644
--- a/nnn.1
+++ b/nnn.1
@@ -305,9 +305,9 @@ files.
     export NNN_NO_AUTOSELECT=1
 .Ed
 .Pp
-\fBDISABLE_FILE_OPEN_ON_NAV:\fR disable file open on \fBRight\fR or \fBl\fR keys (\fBEnter\fR opens files).
+\fBNNN_NO_FILE_OPEN_ON_NAV:\fR disable file open on \fBRight\fR or \fBl\fR keys (\fBEnter\fR opens files).
 .Bd -literal
-    export DISABLE_FILE_OPEN_ON_NAV=1
+    export NNN_NO_FILE_OPEN_ON_NAV=1
 .Ed
 .Pp
 \fBNNN_RESTRICT_0B:\fR restrict opening 0-byte files due to unexpected behaviour; use \fIedit\fR or \fIopen with\fR to open the file.
diff --git a/src/nnn.c b/src/nnn.c
index 1cdaa569..76e448e7 100644
--- a/src/nnn.c
+++ b/src/nnn.c
@@ -2161,8 +2161,8 @@ static bool show_help(char *path)
 		dprintf(fd, "NNN_SHOW_HIDDEN: 1\n");
 	if (getenv("NNN_NO_AUTOSELECT"))
 		dprintf(fd, "NNN_NO_AUTOSELECT: 1\n");
-	if (getenv("DISABLE_FILE_OPEN_ON_NAV"))
-		dprintf(fd, "DISABLE_FILE_OPEN_ON_NAV: 1\n");
+	if (getenv("NNN_NO_FILE_OPEN_ON_NAV"))
+		dprintf(fd, "NNN_NO_FILE_OPEN_ON_NAV: 1\n");
 
 	dprintf(fd, "\n");
 
@@ -3778,7 +3778,7 @@ int main(int argc, char *argv[])
 		cfg.autoselect = 0;
 
 	/* Disable opening files on right arrow and `l` */
-	if (getenv("DISABLE_FILE_OPEN_ON_NAV"))
+	if (getenv("NNN_NO_FILE_OPEN_ON_NAV"))
 		cfg.nonavopen = 1;
 
 	/* Restrict opening of 0-byte files */