diff --git a/src/raylib.h b/src/raylib.h
index e58469856..aac95b408 100644
--- a/src/raylib.h
+++ b/src/raylib.h
@@ -1466,11 +1466,11 @@ RLAPI int GetPixelDataSize(int width, int height, int format);              // G
 // Font loading/unloading functions
 RLAPI Font GetFontDefault(void);                                                            // Get the default Font
 RLAPI Font LoadFont(const char *fileName);                                                  // Load font from file into GPU memory (VRAM)
-RLAPI Font LoadFontEx(const char *fileName, int fontSize, int *codepoints, int codepointCount); // Load font from file with extended parameters, use NULL for codepoints and 0 for codepointCount to load the default character set, font size is provided in pixels height
+RLAPI Font LoadFontEx(const char *fileName, int fontSize, const int *codepoints, int codepointCount); // Load font from file with extended parameters, use NULL for codepoints and 0 for codepointCount to load the default character set, font size is provided in pixels height
 RLAPI Font LoadFontFromImage(Image image, Color key, int firstChar);                        // Load font from Image (XNA style)
-RLAPI Font LoadFontFromMemory(const char *fileType, const unsigned char *fileData, int dataSize, int fontSize, int *codepoints, int codepointCount); // Load font from memory buffer, fileType refers to extension: i.e. '.ttf'
+RLAPI Font LoadFontFromMemory(const char *fileType, const unsigned char *fileData, int dataSize, int fontSize, const int *codepoints, int codepointCount); // Load font from memory buffer, fileType refers to extension: i.e. '.ttf'
 RLAPI bool IsFontValid(Font font);                                                          // Check if a font is valid (font data loaded, WARNING: GPU texture not checked)
-RLAPI GlyphInfo *LoadFontData(const unsigned char *fileData, int dataSize, int fontSize, int *codepoints, int codepointCount, int type); // Load font data for further use
+RLAPI GlyphInfo *LoadFontData(const unsigned char *fileData, int dataSize, int fontSize, const int *codepoints, int codepointCount, int type); // Load font data for further use
 RLAPI Image GenImageFontAtlas(const GlyphInfo *glyphs, Rectangle **glyphRecs, int glyphCount, int fontSize, int padding, int packMethod); // Generate image font atlas using chars info
 RLAPI void UnloadFontData(GlyphInfo *glyphs, int glyphCount);                               // Unload font chars info data (RAM)
 RLAPI void UnloadFont(Font font);                                                           // Unload font from GPU memory (VRAM)
diff --git a/src/rtext.c b/src/rtext.c
index f54c71aef..faec099ee 100644
--- a/src/rtext.c
+++ b/src/rtext.c
@@ -147,7 +147,7 @@ static int textLineSpacing = 2;                 // Text vertical line spacing in
 static Font LoadBMFont(const char *fileName);   // Load a BMFont file (AngelCode font file)
 #endif
 #if defined(SUPPORT_FILEFORMAT_BDF)
-static GlyphInfo *LoadFontDataBDF(const unsigned char *fileData, int dataSize, int *codepoints, int codepointCount, int *outFontSize);
+static GlyphInfo *LoadFontDataBDF(const unsigned char *fileData, int dataSize, const int *codepoints, int codepointCount, int *outFontSize);
 #endif
 
 #if defined(SUPPORT_DEFAULT_FONT)
@@ -404,7 +404,7 @@ Font LoadFont(const char *fileName)
 // Load Font from TTF or BDF font file with generation parameters
 // NOTE: You can pass an array with desired characters, those characters should be available in the font
 // if array is NULL, default char set is selected 32..126
-Font LoadFontEx(const char *fileName, int fontSize, int *codepoints, int codepointCount)
+Font LoadFontEx(const char *fileName, int fontSize, const int *codepoints, int codepointCount)
 {
     Font font = { 0 };
 
@@ -549,7 +549,7 @@ Font LoadFontFromImage(Image image, Color key, int firstChar)
 }
 
 // Load font from memory buffer, fileType refers to extension: i.e. ".ttf"
-Font LoadFontFromMemory(const char *fileType, const unsigned char *fileData, int dataSize, int fontSize, int *codepoints, int codepointCount)
+Font LoadFontFromMemory(const char *fileType, const unsigned char *fileData, int dataSize, int fontSize, const int *codepoints, int codepointCount)
 {
     Font font = { 0 };
 
@@ -620,7 +620,7 @@ bool IsFontValid(Font font)
 
 // Load font data for further use
 // NOTE: Requires TTF font memory data and can generate SDF data
-GlyphInfo *LoadFontData(const unsigned char *fileData, int dataSize, int fontSize, int *codepoints, int codepointCount, int type)
+GlyphInfo *LoadFontData(const unsigned char *fileData, int dataSize, int fontSize, const int *codepoints, int codepointCount, int type)
 {
     // NOTE: Using some SDF generation default values,
     // trades off precision with ability to handle *smaller* sizes
@@ -2392,7 +2392,7 @@ static unsigned char HexToInt(char hex)
 
 // Load font data for further use
 // NOTE: Requires BDF font memory data
-static GlyphInfo *LoadFontDataBDF(const unsigned char *fileData, int dataSize, int *codepoints, int codepointCount, int *outFontSize)
+static GlyphInfo *LoadFontDataBDF(const unsigned char *fileData, int dataSize, const int *codepoints, int codepointCount, int *outFontSize)
 {
     #define MAX_BUFFER_SIZE 256