diff --git a/configure.ac b/configure.ac
index e23540e63..7342dcb77 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1744,6 +1744,7 @@ AC_CHECK_FUNCS([ \
 	poll \
 	prctl \
 	pstat \
+	raise \
 	readpassphrase \
 	reallocarray \
 	recvmsg \
diff --git a/openbsd-compat/bsd-misc.c b/openbsd-compat/bsd-misc.c
index 3e8f74b72..af58f3bd2 100644
--- a/openbsd-compat/bsd-misc.c
+++ b/openbsd-compat/bsd-misc.c
@@ -290,3 +290,11 @@ bzero(void *b, size_t n)
 	(void)memset(b, 0, n);
 }
 #endif
+
+#ifndef HAVE_RAISE
+int
+raise(int sig)
+{
+	kill(getpid(), sig);
+}
+#endif
diff --git a/openbsd-compat/bsd-misc.h b/openbsd-compat/bsd-misc.h
index bf5fad188..3cb912d28 100644
--- a/openbsd-compat/bsd-misc.h
+++ b/openbsd-compat/bsd-misc.h
@@ -137,4 +137,8 @@ long long llabs(long long);
 void bzero(void *, size_t);
 #endif
 
+#ifndef HAVE_RAISE
+int raise(int);
+#endif
+
 #endif /* _BSD_MISC_H */