diff --git a/lib/safe-parser.js b/lib/safe-parser.js
index 4a26c24..e30519b 100644
--- a/lib/safe-parser.js
+++ b/lib/safe-parser.js
@@ -38,6 +38,9 @@ class SafeParser extends Parser {
   decl(tokens) {
     if (tokens.length > 1 && tokens.some(i => i[0] === 'word')) {
       super.decl(tokens)
+      // Words before colon are already in raws.between,
+      // so remove their copy added by unknownWord()
+      this.spaces = ''
     }
   }
 
diff --git a/test/parse.test.js b/test/parse.test.js
index 6e0acbb..d5fe65f 100644
--- a/test/parse.test.js
+++ b/test/parse.test.js
@@ -78,6 +78,7 @@ test('fixes 2 properties in safe mode', () => {
   equal(root.first.nodes.length, 1)
   equal(root.first.first.prop, 'color')
   equal(root.first.first.raws.between, ' one: ')
+  equal(root.toString(), 'a { color one: white; one }')
 })
 
 test('fixes nameless at-rule in safe mode', () => {