diff --git a/c/qrcodegen.c b/c/qrcodegen.c
index cfb7eb1..2d1240d 100644
--- a/c/qrcodegen.c
+++ b/c/qrcodegen.c
@@ -117,8 +117,8 @@ testable const int8_t NUM_ERROR_CORRECTION_BLOCKS[4][41] = {
 };
 
 // For automatic mask pattern selection.
-static const int PENALTY_N1 = 3;
-static const int PENALTY_N2 = 3;
+static const int PENALTY_N1 =  3;
+static const int PENALTY_N2 =  3;
 static const int PENALTY_N3 = 40;
 static const int PENALTY_N4 = 10;
 
diff --git a/cpp/QrCode.cpp b/cpp/QrCode.cpp
index 514435b..9c4db53 100644
--- a/cpp/QrCode.cpp
+++ b/cpp/QrCode.cpp
@@ -536,8 +536,8 @@ bool QrCode::getBit(long x, int i) {
 
 /*---- Tables of constants ----*/
 
-const int QrCode::PENALTY_N1 = 3;
-const int QrCode::PENALTY_N2 = 3;
+const int QrCode::PENALTY_N1 =  3;
+const int QrCode::PENALTY_N2 =  3;
 const int QrCode::PENALTY_N3 = 40;
 const int QrCode::PENALTY_N4 = 10;
 
diff --git a/java/io/nayuki/qrcodegen/QrCode.java b/java/io/nayuki/qrcodegen/QrCode.java
index 36e7939..db4d83e 100644
--- a/java/io/nayuki/qrcodegen/QrCode.java
+++ b/java/io/nayuki/qrcodegen/QrCode.java
@@ -707,8 +707,8 @@ public final class QrCode {
 	/*---- Private tables of constants ----*/
 	
 	// For use in getPenaltyScore(), when evaluating which mask is best.
-	private static final int PENALTY_N1 = 3;
-	private static final int PENALTY_N2 = 3;
+	private static final int PENALTY_N1 =  3;
+	private static final int PENALTY_N2 =  3;
 	private static final int PENALTY_N3 = 40;
 	private static final int PENALTY_N4 = 10;
 	
diff --git a/javascript/qrcodegen.js b/javascript/qrcodegen.js
index 0af8399..1492733 100644
--- a/javascript/qrcodegen.js
+++ b/javascript/qrcodegen.js
@@ -641,8 +641,8 @@ var qrcodegen = new function() {
 	/*---- Private tables of constants for QrCode ----*/
 	
 	// For use in getPenaltyScore(), when evaluating which mask is best.
-	QrCode.PENALTY_N1 = 3;
-	QrCode.PENALTY_N2 = 3;
+	QrCode.PENALTY_N1 =  3;
+	QrCode.PENALTY_N2 =  3;
 	QrCode.PENALTY_N3 = 40;
 	QrCode.PENALTY_N4 = 10;
 	
diff --git a/python/qrcodegen.py b/python/qrcodegen.py
index 512be56..e1326b8 100644
--- a/python/qrcodegen.py
+++ b/python/qrcodegen.py
@@ -530,8 +530,8 @@ class QrCode(object):
 	# ---- Private tables of constants ----
 	
 	# For use in getPenaltyScore(), when evaluating which mask is best.
-	_PENALTY_N1 = 3
-	_PENALTY_N2 = 3
+	_PENALTY_N1 =  3
+	_PENALTY_N2 =  3
 	_PENALTY_N3 = 40
 	_PENALTY_N4 = 10
 	
diff --git a/rust/src/lib.rs b/rust/src/lib.rs
index f80c22a..a37a533 100644
--- a/rust/src/lib.rs
+++ b/rust/src/lib.rs
@@ -681,8 +681,8 @@ pub const QrCode_MAX_VERSION: Version = Version(40);
 /*---- Private tables of constants ----*/
 
 // For use in get_penalty_score(), when evaluating which mask is best.
-const PENALTY_N1: i32 = 3;
-const PENALTY_N2: i32 = 3;
+const PENALTY_N1: i32 =  3;
+const PENALTY_N2: i32 =  3;
 const PENALTY_N3: i32 = 40;
 const PENALTY_N4: i32 = 10;
 
diff --git a/typescript/qrcodegen.ts b/typescript/qrcodegen.ts
index d197129..fa4f9eb 100644
--- a/typescript/qrcodegen.ts
+++ b/typescript/qrcodegen.ts
@@ -611,8 +611,8 @@ namespace qrcodegen {
 		
 		
 		// For use in getPenaltyScore(), when evaluating which mask is best.
-		private static readonly PENALTY_N1: int = 3;
-		private static readonly PENALTY_N2: int = 3;
+		private static readonly PENALTY_N1: int =  3;
+		private static readonly PENALTY_N2: int =  3;
 		private static readonly PENALTY_N3: int = 40;
 		private static readonly PENALTY_N4: int = 10;