diff --git a/autotests/util/iwd.py b/autotests/util/iwd.py
index 9c15e78b..8a9954f0 100755
--- a/autotests/util/iwd.py
+++ b/autotests/util/iwd.py
@@ -851,6 +851,7 @@ class IWD(AsyncOpAbstract):
             if os.environ.get('IWD_TEST_VALGRIND', None) == 'on':
                     args.append('valgrind')
                     args.append('--leak-check=full')
+                    args.append('--log-file=/tmp/valgrind.log')
 
             args.append('iwd')
             args.append('-c')
diff --git a/tools/test-runner.c b/tools/test-runner.c
index 415841c5..6d3e4574 100644
--- a/tools/test-runner.c
+++ b/tools/test-runner.c
@@ -1257,7 +1257,7 @@ done:
 static pid_t start_iwd(const char *config_dir, struct l_queue *wiphy_list,
 		const char *ext_options)
 {
-	char *argv[12];
+	char *argv[13];
 	char *iwd_phys = NULL;
 	pid_t ret;
 	int idx = 0;
@@ -1265,6 +1265,7 @@ static pid_t start_iwd(const char *config_dir, struct l_queue *wiphy_list,
 	if (valgrind) {
 		argv[idx++] = "valgrind";
 		argv[idx++] = "--leak-check=full";
+		argv[idx++] = "--log-file=/tmp/valgrind.log";
 	}
 
 	if (strcmp(gdb_opt, "iwd") == 0) {
@@ -1841,6 +1842,10 @@ static void create_network_and_run_tests(const void *key, void *value,
 	if (iwd_pid > 0)
 		terminate_iwd(iwd_pid);
 
+	if (valgrind)
+		if (system("cat /tmp/valgrind.log"))
+			l_info("cat /tmp/valgrind.log failed");
+
 	if (ofono_req) {
 		loopback_started = false;
 		stop_ofono(ofono_pid);