1 files changed, 2 insertions, 0 deletions
diff --git a/signal.c b/signal.c
index f9546dc5..7e6268a7 100644
--- a/signal.c
+++ b/signal.c
@@ -17,6 +17,8 @@
  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#include <sys/types.h>
+
 #include <string.h>
 #include <signal.h>