diff --git a/test/test1.c b/test/test1.c
index 641a1935..c7f1082a 100644
--- a/test/test1.c
+++ b/test/test1.c
@@ -1063,7 +1063,7 @@ int main(int argc, char** argv)
 	fprintf(xml, "<testsuite name=\"test1\" tests=\"%d\">\n", (int)(ARRAY_SIZE(tests) - 1));
 
 	setenv("MQTT_C_CLIENT_TRACE", "ON", 1);
-	setenv("MQTT_C_CLIENT_TRACE_LEVEL", "ERROR", 1);
+	setenv("MQTT_C_CLIENT_TRACE_LEVEL", "ERROR", 0);
 
 	getopts(argc, argv);
 
diff --git a/test/test2.c b/test/test2.c
index 9d1ff616..a863e798 100644
--- a/test/test2.c
+++ b/test/test2.c
@@ -683,7 +683,7 @@ int main(int argc, char** argv)
 	fprintf(xml, "<testsuite name=\"test1\" tests=\"%d\">\n", (int)(ARRAY_SIZE(tests) - 1));
 
 	setenv("MQTT_C_CLIENT_TRACE", "ON", 1);
-	setenv("MQTT_C_CLIENT_TRACE_LEVEL", "ERROR", 1);
+	setenv("MQTT_C_CLIENT_TRACE_LEVEL", "ERROR", 0);
 
 	getopts(argc, argv);
 
diff --git a/test/test3.c b/test/test3.c
index 9b87e835..9452514d 100644
--- a/test/test3.c
+++ b/test/test3.c
@@ -1530,7 +1530,7 @@ int main(int argc, char** argv)
 	fprintf(xml, "<testsuite name=\"test3\" tests=\"%d\">\n", (int)(ARRAY_SIZE(tests) - 1));
     
 	setenv("MQTT_C_CLIENT_TRACE", "ON", 1);
-	setenv("MQTT_C_CLIENT_TRACE_LEVEL", "ERROR", 1);
+	setenv("MQTT_C_CLIENT_TRACE_LEVEL", "ERROR", 0);
 	getopts(argc, argv);
  	if (options.test_no == 0)
 	{ /* run all the tests */