diff --git a/app/src/processing/mode/java/preproc/PdePreprocessor.java b/app/src/processing/mode/java/preproc/PdePreprocessor.java
index f70ff4bfe..5602d8ab5 100644
--- a/app/src/processing/mode/java/preproc/PdePreprocessor.java
+++ b/app/src/processing/mode/java/preproc/PdePreprocessor.java
@@ -167,7 +167,7 @@ public class PdePreprocessor {
    * and pasting from the reference.
    */
   public static final String SIZE_REGEX =
-    "(?:^|\\s|;)size\\s*\\(\\s*([^\\s,]+)\\s*,\\s*([^\\s,\\)]+),?\\s*([^\\)]*)\\s*\\)\\s*\\;";
+    "(?:^|\\s|;)size\\s*\\(\\s*([^\\s,]+)\\s*,\\s*([^\\s,\\)]+)\\s*,?\\s*([^\\)]*)\\s*\\)\\s*\\;";
     //"(?:^|\\s|;)size\\s*\\(\\s*(\\S+)\\s*,\\s*([^\\s,\\)]+),?\\s*([^\\)]*)\\s*\\)\\s*\\;";