diff --git a/tests/test_sub_ntf.c b/tests/test_sub_ntf.c
index 2990f88a..393ba42f 100644
--- a/tests/test_sub_ntf.c
+++ b/tests/test_sub_ntf.c
@@ -20,6 +20,7 @@
 #include <stdarg.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/wait.h>
 #include <time.h>
 #include <unistd.h>
 
diff --git a/tests/test_sub_ntf_advanced.c b/tests/test_sub_ntf_advanced.c
index e42fac23..302684d8 100644
--- a/tests/test_sub_ntf_advanced.c
+++ b/tests/test_sub_ntf_advanced.c
@@ -20,6 +20,7 @@
 #include <stdarg.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/wait.h>
 #include <time.h>
 #include <unistd.h>
 
diff --git a/tests/test_sub_ntf_filter.c b/tests/test_sub_ntf_filter.c
index 456bbbf0..01563eea 100644
--- a/tests/test_sub_ntf_filter.c
+++ b/tests/test_sub_ntf_filter.c
@@ -20,6 +20,7 @@
 #include <stdarg.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/wait.h>
 #include <time.h>
 #include <unistd.h>
 
diff --git a/tests/test_subscribe_param.c b/tests/test_subscribe_param.c
index 8799476a..b8906419 100644
--- a/tests/test_subscribe_param.c
+++ b/tests/test_subscribe_param.c
@@ -20,6 +20,7 @@
 #include <stdarg.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/wait.h>
 #include <time.h>
 #include <unistd.h>
 
diff --git a/tests/test_yang_push.c b/tests/test_yang_push.c
index d9f51b35..de49b561 100644
--- a/tests/test_yang_push.c
+++ b/tests/test_yang_push.c
@@ -20,6 +20,7 @@
 #include <stdarg.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/wait.h>
 #include <time.h>
 #include <unistd.h>
 
diff --git a/tests/test_yang_push_advanced.c b/tests/test_yang_push_advanced.c
index f0b99d37..d812ecf6 100644
--- a/tests/test_yang_push_advanced.c
+++ b/tests/test_yang_push_advanced.c
@@ -20,6 +20,7 @@
 #include <stdarg.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/wait.h>
 #include <time.h>
 #include <unistd.h>