1 files changed, 2 insertions, 1 deletions
diff --git a/tests/stdio/test_fgetc_ungetc.c b/tests/stdio/test_fgetc_ungetc.c
index c69a3d1a..15dc1543 100644
--- a/tests/stdio/test_fgetc_ungetc.c
+++ b/tests/stdio/test_fgetc_ungetc.c
@@ -1,5 +1,6 @@
 #include <assert.h>
 #include <fcntl.h>
+#include <signal.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -84,4 +85,4 @@ int main() {
   setup();
   test();
   return EXIT_SUCCESS;
-}
-\ No newline at end of file
+}