diff --git a/configure.ac b/configure.ac
index 11d02190d8..bfa82fcc2d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1839,7 +1839,6 @@ AC_CHECK_HEADERS([ \
 features.h \
 langinfo.h \
 locale.h \
-signal.h \
 sys/time.h \
 sys/prctl.h \
 sys/resource.h \