diff --git a/gclc/src/main/java/net/bigeon/gclc/GCLCConstants.java b/gclc/src/main/java/net/bigeon/gclc/GCLCConstants.java
index da20264..08e45bc 100644
--- a/gclc/src/main/java/net/bigeon/gclc/GCLCConstants.java
+++ b/gclc/src/main/java/net/bigeon/gclc/GCLCConstants.java
@@ -146,10 +146,7 @@ public final class GCLCConstants {
                 continue;
             }
             if (c == ' ' && !inString) {
-                final String arg = cmd.substring(startIndex, index - 1);
-                if (!arg.isEmpty()) {
-                    args.add(removeEscaped(arg));
-                }
+                addArgument(args, cmd.substring(startIndex, index - 1));
                 startIndex = index;
             } else if (c == '"') {
                 if (inString) {
@@ -169,4 +166,13 @@ public final class GCLCConstants {
         return args;
     }
 
+    /** Add an argument to the list of arguments if it is not an empty string.
+     * 
+     * @param args the list of argument
+     * @param arg the candidate argument */
+    private static void addArgument(final List<String> args, final String arg) {
+        if (!arg.isEmpty()) {
+            args.add(removeEscaped(arg));
+        }
+    }
 }