diff --git a/toonz/sources/image/pli/tiio_pli.cpp b/toonz/sources/image/pli/tiio_pli.cpp
index df0dcb5..4878a1d 100644
--- a/toonz/sources/image/pli/tiio_pli.cpp
+++ b/toonz/sources/image/pli/tiio_pli.cpp
@@ -457,6 +457,7 @@ TImageWriterPli::TImageWriterPli(const TFilePath &f, const TFrameId &frameId,
 static void putStroke(TStroke *stroke, int &currStyleId,
                       std::vector<PliObjectTag *> &tags) {
   double maxThickness = 0;
+  bool nonStdOutline  = false;
   assert(stroke);
 
   int chunkCount = stroke->getChunkCount();
@@ -477,10 +478,12 @@ static void putStroke(TStroke *stroke, int &currStyleId,
   // If the outline options are non-standard (not round), add the outline infos
   TStroke::OutlineOptions &options = stroke->outlineOptions();
   if (options.m_capStyle != TStroke::OutlineOptions::ROUND_CAP ||
-      options.m_joinStyle != TStroke::OutlineOptions::ROUND_JOIN) {
+      options.m_joinStyle != TStroke::OutlineOptions::ROUND_JOIN ||
+      options.m_miterLower != 0.0 || options.m_miterUpper != 4.0) {
     StrokeOutlineOptionsTag *outlineOptionsTag =
         new StrokeOutlineOptionsTag(options);
     tags.push_back((PliObjectTag *)outlineOptionsTag);
+    nonStdOutline = true;
   }
 
   UINT k;
@@ -501,6 +504,14 @@ static void putStroke(TStroke *stroke, int &currStyleId,
 
   tags.push_back((PliObjectTag *)quadChainTag);
   // pli->addTag(groupTag[count++]);
+
+  if (nonStdOutline) {
+    // Restore default outline settings
+    TStroke::OutlineOptions resetoptions;
+    StrokeOutlineOptionsTag *outlineOptionsTag =
+        new StrokeOutlineOptionsTag(resetoptions);
+    tags.push_back((PliObjectTag *)outlineOptionsTag);
+  }
 }
 
 //-----------------------------------------------------------------------------