diff --git a/decor/percentage.go b/decor/percentage.go
index 5365842..8e0d832 100644
--- a/decor/percentage.go
+++ b/decor/percentage.go
@@ -31,10 +31,10 @@
 		b = append(b, '%')
 	}
 	_, err := st.Write(b)
-	bytePool.Put(p)
 	if err != nil {
 		panic(err)
 	}
+	bytePool.Put(p)
 }
 
 // Percentage returns percentage decorator. It's a wrapper of NewPercentage.
diff --git a/decor/size_type.go b/decor/size_type.go
index c6205e8..753c160 100644
--- a/decor/size_type.go
+++ b/decor/size_type.go
@@ -56,10 +56,10 @@
 	}
 	b = append(b, []byte(unit.String())...)
 	_, err := st.Write(b)
-	bytePool.Put(p)
 	if err != nil {
 		panic(err)
 	}
+	bytePool.Put(p)
 }
 
 const (
@@ -110,8 +110,8 @@
 	}
 	b = append(b, []byte(unit.String())...)
 	_, err := st.Write(b)
-	bytePool.Put(p)
 	if err != nil {
 		panic(err)
 	}
+	bytePool.Put(p)
 }