diff --git a/usr.bin/asa/tests/asa_test.sh b/usr.bin/asa/tests/asa_test.sh
index 91515bb55d9..2b8fecb12d9 100644
--- a/usr.bin/asa/tests/asa_test.sh
+++ b/usr.bin/asa/tests/asa_test.sh
@@ -70,6 +70,7 @@ stdout_head() {
 stdout_body() {
 	(
 		trap "" PIPE
+		sleep 1
 		echo " $a $b" | asa 2>stderr
 		echo $? >result
 	) | true
diff --git a/usr.bin/cmp/tests/cmp_test2.sh b/usr.bin/cmp/tests/cmp_test2.sh
index 2ec6071851d..bca8fc18a6b 100755
--- a/usr.bin/cmp/tests/cmp_test2.sh
+++ b/usr.bin/cmp/tests/cmp_test2.sh
@@ -138,6 +138,7 @@ atf_check_stdout()
 {
 	(
 		trap "" PIPE
+		sleep 1
 		cmp "$@" 2>stderr
 		echo $? >result
 	) | true
diff --git a/usr.bin/env/tests/env_test.sh b/usr.bin/env/tests/env_test.sh
index 2dc8f1a4c91..3210361eb22 100644
--- a/usr.bin/env/tests/env_test.sh
+++ b/usr.bin/env/tests/env_test.sh
@@ -139,6 +139,7 @@ stdout_body()
 {
 	(
 		trap "" PIPE
+		sleep 1
 		env 2>stderr
 		echo $? >result
 	) | true