diff --git a/tests/rx/perf-t b/tests/rx/perf-t
index fd4ff17e22..eee841e7ef 100755
--- a/tests/rx/perf-t
+++ b/tests/rx/perf-t
@@ -63,9 +63,9 @@ kill("TERM", $pid);
 waitpid($pid, 0);
 my $ecode = ${^CHILD_ERROR_NATIVE};
 if (WIFSIGNALED($ecode) && WTERMSIG($ecode) != SIGTERM) {
-    fail("Server died with signal ".WTERMSIG($ecode));
+    fail("Server died with signal " . WTERMSIG($ecode));
 } elsif (WIFEXITED($ecode) && WEXITSTATUS($ecode) != 0) {
-    fail("Server exited with code". WEXITSTATUS($ecode));
+    fail("Server exited with code " . WEXITSTATUS($ecode));
 } else {
     pass("Server exited succesfully");
 }
diff --git a/tests/rx/simple-t b/tests/rx/simple-t
index acd5ef8195..1c5143a7c2 100755
--- a/tests/rx/simple-t
+++ b/tests/rx/simple-t
@@ -82,7 +82,7 @@ my $ecode = ${^CHILD_ERROR_NATIVE};
 if (WIFSIGNALED($ecode) && WTERMSIG($ecode) == SIGTERM) {
     pass("Server died with SIGTERM");
 } elsif (WIFSIGNALED($ecode)) {
-    fail("Server died with signal ".WTERMSIG($ecode));
+    fail("Server died with signal " . WTERMSIG($ecode));
 } else {
-    fail("Server exited with code". WEXITSTATUS($ecode));
+    fail("Server exited with code " . WEXITSTATUS($ecode));
 }