diff --git a/src/line-by-line-printer.js b/src/line-by-line-printer.js
index 33722b6..49f183f 100644
--- a/src/line-by-line-printer.js
+++ b/src/line-by-line-printer.js
@@ -211,6 +211,10 @@
       lineWithoutPrefix = lineWithPrefix.line;
     }
 
+    if (prefix === ' ') {
+      prefix = ' ';
+    }
+
     return hoganUtils.render(genericTemplatesPath, 'line',
       {
         type: type,
diff --git a/src/side-by-side-printer.js b/src/side-by-side-printer.js
index 6a739e5..f11572c 100644
--- a/src/side-by-side-printer.js
+++ b/src/side-by-side-printer.js
@@ -244,6 +244,10 @@
       lineWithoutPrefix = lineWithPrefix.line;
     }
 
+    if (prefix === ' ') {
+      prefix = ' ';
+    }
+
     return hoganUtils.render(genericTemplatesPath, 'line',
       {
         type: type,