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-rw-r--r--res/res_resolver_unbound.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/res/res_resolver_unbound.c b/res/res_resolver_unbound.c
index 436a8ee35..a4e86a682 100644
--- a/res/res_resolver_unbound.c
+++ b/res/res_resolver_unbound.c
@@ -25,6 +25,7 @@
ASTERISK_REGISTER_FILE()
+#include <signal.h>
#include <unbound.h>
#include <arpa/nameser.h>