diff --git a/tests/common/mod.rs b/tests/common/mod.rs
index d389e86..a0614cc 100644
--- a/tests/common/mod.rs
+++ b/tests/common/mod.rs
@@ -39,11 +39,11 @@ pub fn new_ds3234(transactions: &[SpiTrans])
 
 #[macro_export]
 macro_rules! get_test {
-    ($name:ident, $method:ident, $create_method:ident, $expected:expr, $transaction:expr) => {
+    ($name:ident, $method:ident, $create_method:ident, $expected:expr, $transactions:expr) => {
         #[test]
         fn $name() {
-            let transactions = [ $transaction ];
-            let mut dev = $create_method(&transactions);
+            let trans = $transactions;
+            let mut dev = $create_method(&trans);
             assert_eq!($expected, dev.$method().unwrap());
         }
     };
@@ -51,11 +51,11 @@ macro_rules! get_test {
 
 #[macro_export]
 macro_rules! set_test {
-    ($name:ident, $method:ident, $create_method:ident, $value:expr, $transaction:expr) => {
+    ($name:ident, $method:ident, $create_method:ident, $value:expr, $transactions:expr) => {
         #[test]
         fn $name() {
-            let transactions = [ $transaction ];
-            let mut dev = $create_method(&transactions);
+            let trans = $transactions;
+            let mut dev = $create_method(&trans);
             dev.$method($value).unwrap();
         }
     };
diff --git a/tests/ds323x.rs b/tests/ds323x.rs
index db00ac2..01866f4 100644
--- a/tests/ds323x.rs
+++ b/tests/ds323x.rs
@@ -12,26 +12,28 @@ use ds323x::{ Hours, Error };
 macro_rules! get_param_test {
     ($method:ident, $register:ident, $value:expr, $binary_value:expr) => {
         get_test!(can_get_ds3231, $method, new_ds3231, $value,
-                I2cTrans::write_read(DEV_ADDR, vec![Register::$register], vec![$binary_value]));
+                  [ I2cTrans::write_read(DEV_ADDR, vec![Register::$register], vec![$binary_value]) ]);
 
         get_test!(can_get_ds3232, $method, new_ds3232, $value,
-                I2cTrans::write_read(DEV_ADDR, vec![Register::$register], vec![$binary_value]));
+                  [ I2cTrans::write_read(DEV_ADDR, vec![Register::$register], vec![$binary_value]) ]);
 
         get_test!(can_get_ds3234, $method, new_ds3234, $value,
-                SpiTrans::transfer(vec![Register::$register, 0], vec![Register::$register, $binary_value]));
+                  [ SpiTrans::transfer(vec![Register::$register, 0], vec![Register::$register, $binary_value]) ]);
     };
 }
 
 macro_rules! set_param_test {
     ($method:ident, $register:ident, $value:expr, $binary_value:expr) => {
         set_test!(can_set_ds3231, $method, new_ds3231, $value,
-                I2cTrans::write(DEV_ADDR, vec![Register::$register, $binary_value]));
+                  [ I2cTrans::write(DEV_ADDR, vec![Register::$register, $binary_value]) ]);
 
         set_test!(can_set_ds3232, $method, new_ds3232, $value,
-                I2cTrans::write(DEV_ADDR, vec![Register::$register, $binary_value]));
+                  [ I2cTrans::write(DEV_ADDR, vec![Register::$register, $binary_value]) ]);
 
         set_test!(can_set_ds3234, $method, new_ds3234, $value,
-                SpiTrans::write(vec![Register::$register + 0x80, $binary_value]));
+                  [ SpiTrans::write(vec![Register::$register + 0x80, $binary_value]) ]);
+    };
+}
     };
 }