diff --git a/cpp/QrCode.hpp b/cpp/QrCode.hpp
index 4d33300..9bcb2a6 100644
--- a/cpp/QrCode.hpp
+++ b/cpp/QrCode.hpp
@@ -128,7 +128,8 @@ class QrCode final {
 	
 	// Private grids of modules/pixels, with dimensions of size*size:
 	
-	// The modules of this QR Code (false = white, true = black). Immutable after constructor finishes.
+	// The modules of this QR Code (false = white, true = black).
+	// Immutable after constructor finishes. Accessed through getModule().
 	private: std::vector<std::vector<bool> > modules;
 	
 	// Indicates function modules that are not subjected to masking. Discarded when constructor finishes.
diff --git a/java/io/nayuki/qrcodegen/QrCode.java b/java/io/nayuki/qrcodegen/QrCode.java
index faafc4a..a63b721 100644
--- a/java/io/nayuki/qrcodegen/QrCode.java
+++ b/java/io/nayuki/qrcodegen/QrCode.java
@@ -212,7 +212,8 @@ public final class QrCode {
 	
 	// Private grids of modules/pixels, with dimensions of size*size:
 	
-	// The modules of this QR Code (false = white, true = black). Immutable after constructor finishes.
+	// The modules of this QR Code (false = white, true = black).
+	// Immutable after constructor finishes. Accessed through getModule().
 	private boolean[][] modules;
 	
 	// Indicates function modules that are not subjected to masking. Discarded when constructor finishes.
diff --git a/python/qrcodegen.py b/python/qrcodegen.py
index 9c75982..e202fcb 100644
--- a/python/qrcodegen.py
+++ b/python/qrcodegen.py
@@ -186,7 +186,8 @@ class QrCode(object):
 		self._errcorlvl = errcorlvl
 		
 		# Initialize both grids to be size*size arrays of Boolean false
-		# The modules of this QR Code (False = white, True = black). Immutable after constructor finishes
+		# The modules of this QR Code (False = white, True = black).
+		# Immutable after constructor finishes. Accessed through get_module().
 		self._modules    = [[False] * self._size for _ in range(self._size)]  # Initially all white
 		# Indicates function modules that are not subjected to masking. Discarded when constructor finishes
 		self._isfunction = [[False] * self._size for _ in range(self._size)]
diff --git a/rust/src/lib.rs b/rust/src/lib.rs
index 4c08978..8cd84c6 100644
--- a/rust/src/lib.rs
+++ b/rust/src/lib.rs
@@ -64,7 +64,8 @@ pub struct QrCode {
 	
 	// Grids of modules/pixels, with dimensions of size*size:
 	
-	// The modules of this QR Code (false = white, true = black). Immutable after constructor finishes.
+	// The modules of this QR Code (false = white, true = black).
+	// Immutable after constructor finishes. Accessed through get_module().
 	modules: Vec<bool>,
 	
 	// Indicates function modules that are not subjected to masking. Discarded when constructor finishes.
diff --git a/typescript/qrcodegen.ts b/typescript/qrcodegen.ts
index 2aca061..9b59dbf 100644
--- a/typescript/qrcodegen.ts
+++ b/typescript/qrcodegen.ts
@@ -148,7 +148,8 @@ namespace qrcodegen {
 		// 21 and 177 (inclusive). This is equal to version * 4 + 17.
 		public readonly size: int;
 		
-		// The modules of this QR Code (false = white, true = black). Immutable after constructor finishes.
+		// The modules of this QR Code (false = white, true = black).
+		// Immutable after constructor finishes. Accessed through getModule().
 		private readonly modules   : Array<Array<boolean>> = [];
 		
 		// Indicates function modules that are not subjected to masking. Discarded when constructor finishes.