diff --git a/test/tests/test_unity_arrays.c b/test/tests/test_unity_arrays.c
index 496dda0..ff90a6c 100644
--- a/test/tests/test_unity_arrays.c
+++ b/test/tests/test_unity_arrays.c
@@ -8,8 +8,8 @@
 #define TEST_INSTANCES
 #include "self_assessment_utils.h"
 
-int SetToOneToFailInTearDown;
-int SetToOneMeanWeAlreadyCheckedThisGuy;
+static int SetToOneToFailInTearDown;
+static int SetToOneMeanWeAlreadyCheckedThisGuy;
 
 void setUp(void)
 {
diff --git a/test/tests/test_unity_doubles.c b/test/tests/test_unity_doubles.c
index ec93bae..1bdedbc 100644
--- a/test/tests/test_unity_doubles.c
+++ b/test/tests/test_unity_doubles.c
@@ -8,8 +8,8 @@
 #define TEST_INSTANCES
 #include "self_assessment_utils.h"
 
-int SetToOneToFailInTearDown;
-int SetToOneMeanWeAlreadyCheckedThisGuy;
+static int SetToOneToFailInTearDown;
+static int SetToOneMeanWeAlreadyCheckedThisGuy;
 
 void setUp(void)
 {
diff --git a/test/tests/test_unity_floats.c b/test/tests/test_unity_floats.c
index e183384..e89bec2 100644
--- a/test/tests/test_unity_floats.c
+++ b/test/tests/test_unity_floats.c
@@ -8,8 +8,8 @@
 #define TEST_INSTANCES
 #include "self_assessment_utils.h"
 
-int SetToOneToFailInTearDown;
-int SetToOneMeanWeAlreadyCheckedThisGuy;
+static int SetToOneToFailInTearDown;
+static int SetToOneMeanWeAlreadyCheckedThisGuy;
 
 void setUp(void)
 {
diff --git a/test/tests/test_unity_integers.c b/test/tests/test_unity_integers.c
index 38ce566..7bdfa14 100644
--- a/test/tests/test_unity_integers.c
+++ b/test/tests/test_unity_integers.c
@@ -8,8 +8,8 @@
 #define TEST_INSTANCES
 #include "self_assessment_utils.h"
 
-int SetToOneToFailInTearDown;
-int SetToOneMeanWeAlreadyCheckedThisGuy;
+static int SetToOneToFailInTearDown;
+static int SetToOneMeanWeAlreadyCheckedThisGuy;
 
 void setUp(void)
 {
diff --git a/test/tests/test_unity_integers_64.c b/test/tests/test_unity_integers_64.c
index cfc9774..e12566e 100644
--- a/test/tests/test_unity_integers_64.c
+++ b/test/tests/test_unity_integers_64.c
@@ -8,8 +8,8 @@
 #define TEST_INSTANCES
 #include "self_assessment_utils.h"
 
-int SetToOneToFailInTearDown;
-int SetToOneMeanWeAlreadyCheckedThisGuy;
+static int SetToOneToFailInTearDown;
+static int SetToOneMeanWeAlreadyCheckedThisGuy;
 
 void setUp(void)
 {
diff --git a/test/tests/test_unity_memory.c b/test/tests/test_unity_memory.c
index 684ef9b..b3cff13 100644
--- a/test/tests/test_unity_memory.c
+++ b/test/tests/test_unity_memory.c
@@ -8,8 +8,8 @@
 #define TEST_INSTANCES
 #include "self_assessment_utils.h"
 
-int SetToOneToFailInTearDown;
-int SetToOneMeanWeAlreadyCheckedThisGuy;
+static int SetToOneToFailInTearDown;
+static int SetToOneMeanWeAlreadyCheckedThisGuy;
 
 void setUp(void)
 {
diff --git a/test/tests/test_unity_strings.c b/test/tests/test_unity_strings.c
index 6c25d50..964c553 100644
--- a/test/tests/test_unity_strings.c
+++ b/test/tests/test_unity_strings.c
@@ -8,8 +8,8 @@
 #define TEST_INSTANCES
 #include "self_assessment_utils.h"
 
-int SetToOneToFailInTearDown;
-int SetToOneMeanWeAlreadyCheckedThisGuy;
+static int SetToOneToFailInTearDown;
+static int SetToOneMeanWeAlreadyCheckedThisGuy;
 
 void setUp(void)
 {