diff --git a/sbe-tool/src/main/java/uk/co/real_logic/sbe/generation/rust/RustGenerator.java b/sbe-tool/src/main/java/uk/co/real_logic/sbe/generation/rust/RustGenerator.java
index 0514463237..bff76d43a0 100644
--- a/sbe-tool/src/main/java/uk/co/real_logic/sbe/generation/rust/RustGenerator.java
+++ b/sbe-tool/src/main/java/uk/co/real_logic/sbe/generation/rust/RustGenerator.java
@@ -641,7 +641,7 @@ private static void generatePrimitiveArrayDecoder(
         if (fieldToken.version() > 0)
         {
             indent(sb, level + 1, "if self.acting_version < %d {\n", fieldToken.version());
-            indent(sb, level + 2, "return [%s, %d];\n", encoding.applicableNullValue(), arrayLength);
+            indent(sb, level + 2, "return [%s; %d];\n", encoding.applicableNullValue(), arrayLength);
             indent(sb, level + 1, "}\n\n");
         }