diff --git a/lib/text_sentinel.rb b/lib/text_sentinel.rb
index 4e9bf8840c8..e86a897b67c 100644
--- a/lib/text_sentinel.rb
+++ b/lib/text_sentinel.rb
@@ -71,7 +71,7 @@ class TextSentinel
 
   def seems_unpretentious?
     # Don't allow super long words if there is a word length maximum
-    @opts[:max_word_length].blank? || @text.split(/\s|\/|-|\./).map(&:size).max <= @opts[:max_word_length]
+    @opts[:max_word_length].blank? || @text.split(/\s|\/|-|\.|:/).map(&:size).max <= @opts[:max_word_length]
   end
 
 
diff --git a/spec/components/text_sentinel_spec.rb b/spec/components/text_sentinel_spec.rb
index f75a1764592..d1f68cff4c4 100644
--- a/spec/components/text_sentinel_spec.rb
+++ b/spec/components/text_sentinel_spec.rb
@@ -117,6 +117,10 @@ describe TextSentinel do
       expect(TextSentinel.new("error in org.gradle.internal.graph.CachingDirectedGraphWalker", max_word_length: 30)).to be_valid
     end
 
+    it "allows a long string with colons" do
+      expect(TextSentinel.new("error in org.gradle.internal.graph.CachingDirectedGraphWalker:colon", max_word_length: 30)).to be_valid
+    end
+
   end
 
   context 'title_sentinel' do