diff --git a/block.go b/block.go
index f95675e..1e1aa55 100644
--- a/block.go
+++ b/block.go
@@ -754,7 +754,7 @@ func blockCode(out *bytes.Buffer, rndr *render, data []byte) int {
 		n++
 	}
 	if n > 0 {
-        work.Truncate(len(workbytes)-n)
+		work.Truncate(len(workbytes) - n)
 	}
 
 	work.WriteByte('\n')
diff --git a/html.go b/html.go
index 8ad41ce..a1fcd46 100644
--- a/html.go
+++ b/html.go
@@ -35,7 +35,7 @@ const (
 )
 
 type htmlOptions struct {
-	flags     int
+	flags    int
 	closeTag string // how to end singleton tags: usually " />\n", possibly ">\n"
 	tocData  struct {
 		headerCount  int
@@ -427,10 +427,10 @@ func htmlAutoLink(out *bytes.Buffer, link []byte, kind int, opaque interface{})
 	 * an actual URI, e.g. `mailto:foo@bar.com`, we don't
 	 * want to print the `mailto:` prefix
 	 */
-    switch {
+	switch {
 	case bytes.HasPrefix(link, []byte("mailto://")):
 		attrEscape(out, link[9:])
-    case bytes.HasPrefix(link, []byte("mailto:")):
+	case bytes.HasPrefix(link, []byte("mailto:")):
 		attrEscape(out, link[7:])
 	default:
 		attrEscape(out, link)
diff --git a/inline.go b/inline.go
index 0f3c068..6fbd369 100644
--- a/inline.go
+++ b/inline.go
@@ -536,19 +536,19 @@ func inlineEntity(out *bytes.Buffer, rndr *render, data []byte, offset int) int
 }
 
 func inlineAutoLink(out *bytes.Buffer, rndr *render, data []byte, offset int) int {
-    // quick check to rule out most false hits on ':'
-    if len(data) < offset + 3 || data[offset+1] != '/' || data[offset+2] != '/' {
-        return 0
-    }
+	// quick check to rule out most false hits on ':'
+	if len(data) < offset+3 || data[offset+1] != '/' || data[offset+2] != '/' {
+		return 0
+	}
 
-    // scan backward for a word boundary
-    rewind := 0
-    for offset - rewind > 0 && rewind <= 7 && !isspace(data[offset-rewind-1]) && !isspace(data[offset-rewind-1]) {
-        rewind++
-    }
-    if rewind > 6 { // longest supported protocol is "mailto" which has 6 letters
-        return 0
-    }
+	// scan backward for a word boundary
+	rewind := 0
+	for offset-rewind > 0 && rewind <= 7 && !isspace(data[offset-rewind-1]) && !isspace(data[offset-rewind-1]) {
+		rewind++
+	}
+	if rewind > 6 { // longest supported protocol is "mailto" which has 6 letters
+		return 0
+	}
 
 	orig_data := data
 	data = data[offset-rewind:]
@@ -626,10 +626,10 @@ func inlineAutoLink(out *bytes.Buffer, rndr *render, data []byte, offset int) in
 		}
 	}
 
-    // we were triggered on the ':', so we need to rewind the output a bit
-    if out.Len() >= rewind {
-        out.Truncate(len(out.Bytes()) - rewind)
-    }
+	// we were triggered on the ':', so we need to rewind the output a bit
+	if out.Len() >= rewind {
+		out.Truncate(len(out.Bytes()) - rewind)
+	}
 
 	if rndr.mk.AutoLink != nil {
 		var u_link bytes.Buffer