diff --git a/packages/c/sshnpd/src/main.c b/packages/c/sshnpd/src/main.c
index a2baa9f2e..93f6a6ca0 100644
--- a/packages/c/sshnpd/src/main.c
+++ b/packages/c/sshnpd/src/main.c
@@ -32,6 +32,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/wait.h>
 #include <unistd.h>
 
 #define FILENAME_BUFFER_SIZE 500