diff --git a/docs/changes.xml b/docs/changes.xml
index 85749bff..586063db 100644
--- a/docs/changes.xml
+++ b/docs/changes.xml
@@ -105,6 +105,12 @@ the ruby application process could crash if it's interrupted by SIGTERM signal.
 </para>
 </change>
 
+<change type="bugfix">
+<para>
+prevent the ruby application processes from crashing on SIGINT (^C).
+</para>
+</change>
+
 <change type="bugfix">
 <para>
 when isolated PID numbers reach the prototype process host PID,
diff --git a/src/ruby/nxt_ruby.c b/src/ruby/nxt_ruby.c
index 07d02dce..f316d8a5 100644
--- a/src/ruby/nxt_ruby.c
+++ b/src/ruby/nxt_ruby.c
@@ -270,6 +270,8 @@ nxt_ruby_start(nxt_task_t *task, nxt_process_data_t *data)
 
     static char  *argv[2] = { (char *) "NGINX_Unit", (char *) "-e0" };
 
+    signal(SIGINT, SIG_IGN);
+
     conf = data->app;
     c = &conf->u.ruby;