diff --git a/test/iolint.awk b/test/iolint.awk
index 257678ed..826004b4 100644
--- a/test/iolint.awk
+++ b/test/iolint.awk
@@ -56,10 +56,12 @@ BEGIN {
 	fflush()
 
 	# `%.*s' used for input pipe and output pipe
-	"echo hello" | getline junk
-	print "hello" | "echo hello"
-	print close("echo hello")
-	print close("echo hello")
+	# We add the sleep, as we've seen broken pipe race conditions
+	# on some systems.
+	"sleep 2; echo hello" | getline junk
+	print "hello" | "sleep 2; echo hello"
+	print close("sleep 2; echo hello")
+	print close("sleep 2; echo hello")
 	fflush()
 
 	# `%.*s' used for output file and output pipe"
diff --git a/test/iolint.ok b/test/iolint.ok
index fbf514c2..206aa834 100644
--- a/test/iolint.ok
+++ b/test/iolint.ok
@@ -23,11 +23,11 @@ gawk: iolint.awk:53: warning: `cat' used for output file and output pipe
 0
 hello
 0
-gawk: iolint.awk:60: warning: `echo hello' used for input pipe and output pipe
+gawk: iolint.awk:62: warning: `sleep 2; echo hello' used for input pipe and output pipe
 hello
 0
 0
-gawk: iolint.awk:68: warning: `cksum' used for output file and output pipe
+gawk: iolint.awk:70: warning: `cksum' used for output file and output pipe
 3015617425 6
 0
 0