plugins/README.md | 2 +-
 src/nnn.c         | 2 +-

diff --git a/plugins/README.md b/plugins/README.md
index 292c06b03c07df0f9eadd349385aa20986448cda..3ea9949ae9f88d1347dc9bcb3ae924139905783b 100644
--- a/plugins/README.md
+++ b/plugins/README.md
@@ -188,7 +188,7 @@ Usage examples can be found in the Examples section below.
 
 #### Get notified on file hover
 
-If `NNN_FIFO` is set, `nnn` will open it and write every hovered files. This can be used in plugins, e.g. to implement file previews.
+If `NNN_FIFO` is set, `nnn` will open it and write every hovered files. This can be used in plugins and external scripts, e.g. to implement file previews.
 
 If a `NNN_FIFO` is set globally, each `nnn` instance will write to it, and a process reading from the pipe will get hovered path from every instance, interleaved.
 
diff --git a/src/nnn.c b/src/nnn.c
index e6463931f21a317e6507e2f23cb217389edeb200..f915ca791ba00b99fae901d8ee050464aa01587a 100644
--- a/src/nnn.c
+++ b/src/nnn.c
@@ -4258,7 +4258,7 @@ 		while (g_ctx[r].c_cfg.ctxactive && (r != cfg.curctx));
 		ctx = r + 1;
 	} else {
 		ctx = g_buf[0] - '0';
-		if (ctx > CTX_MAX)
+		if (ctx < 0 || ctx > CTX_MAX)
 			return;
 	}