diff --git a/12/12_test.go b/12/12_test.go
index 3ae766c..33c6e18 100644
--- a/12/12_test.go
+++ b/12/12_test.go
@@ -4,37 +4,36 @@ import (
 	"testing"
 )
 
-  
-  var tests = []pipedata{
-		{0, []int{2}},
-		{1, []int{1}},
-		{2, []int{0, 3, 4}},
-		{3, []int{2, 4}},
-		{4, []int{2, 3, 6}},
-		{5, []int{6}},
-		{6, []int{4, 5}},
-  }
+var tests = []pipedata{
+	{0, []int{2}},
+	{1, []int{1}},
+	{2, []int{0, 3, 4}},
+	{3, []int{2, 4}},
+	{4, []int{2, 3, 6}},
+	{5, []int{6}},
+	{6, []int{4, 5}},
+}
 
 func TestCountPipes(t *testing.T) {
-		v := CountPipes(tests)
-		if v != 6 {
-		  t.Error(
+	v := CountPipes(tests)
+	if v != 6 {
+		t.Error(
 			"For", tests,
 			"expected 6",
 			"got", v,
-		  )
-	  }
+		)
+	}
 }
 
 
 func TestCountGroups(t *testing.T) {
 	seen := make(map[int]int)
 	v,_ := CountGroups(seen, tests)
-  if v != 2 {
-    t.Error(
-    "For", tests,
-    "expected 2",
-    "got", v,
-    )
-  }
+	if v != 2 {
+		t.Error(
+			"For", tests,
+			"expected 2",
+			"got", v,
+		)
+	}
 }
\ No newline at end of file