diff --git a/src/api/graphics.c b/src/api/graphics.c
index 7c9ced50..14c3a119 100644
--- a/src/api/graphics.c
+++ b/src/api/graphics.c
@@ -852,13 +852,14 @@ static int l_lovrGraphicsSkybox(lua_State* L) {
 }
 
 static int l_lovrGraphicsPrint(lua_State* L) {
-  const char* str = luaL_checkstring(L, 1);
+  size_t length;
+  const char* str = luaL_checklstring(L, 1, &length);
   float transform[16];
   int index = luax_readmat4(L, 2, transform, 1, NULL);
   float wrap = luaL_optnumber(L, index++, 0);
   HorizontalAlign halign = luaL_checkoption(L, index++, "center", HorizontalAligns);
   VerticalAlign valign = luaL_checkoption(L, index++, "middle", VerticalAligns);
-  lovrGraphicsPrint(str, transform, wrap, halign, valign);
+  lovrGraphicsPrint(str, length, transform, wrap, halign, valign);
   return 0;
 }
 
diff --git a/src/graphics/font.c b/src/graphics/font.c
index c5f38055..c85dfe37 100644
--- a/src/graphics/font.c
+++ b/src/graphics/font.c
@@ -68,7 +68,7 @@ Rasterizer* lovrFontGetRasterizer(Font* font) {
   return font->rasterizer;
 }
 
-void lovrFontRender(Font* font, const char* str, float wrap, HorizontalAlign halign, VerticalAlign valign, float* vertices, float* offsety, uint32_t* vertexCount) {
+void lovrFontRender(Font* font, const char* str, size_t length, float wrap, HorizontalAlign halign, VerticalAlign valign, float* vertices, float* offsety, uint32_t* vertexCount) {
   FontAtlas* atlas = &font->atlas;
 
   float cx = 0;
@@ -77,9 +77,8 @@ void lovrFontRender(Font* font, const char* str, float wrap, HorizontalAlign hal
   float v = atlas->height;
   float scale = 1 / font->pixelDensity;
 
-  int len = strlen(str);
   const char* start = str;
-  const char* end = str + len;
+  const char* end = str + length;
   unsigned int previous = '\0';
   unsigned int codepoint;
   size_t bytes;
@@ -119,7 +118,7 @@ void lovrFontRender(Font* font, const char* str, float wrap, HorizontalAlign hal
 
     // Start over if texture was repacked
     if (u != atlas->width || v != atlas->height) {
-      lovrFontRender(font, start, wrap, halign, valign, vertices, offsety, vertexCount);
+      lovrFontRender(font, start, length, wrap, halign, valign, vertices, offsety, vertexCount);
       return;
     }
 
diff --git a/src/graphics/font.h b/src/graphics/font.h
index 103a6525..3308e6eb 100644
--- a/src/graphics/font.h
+++ b/src/graphics/font.h
@@ -42,7 +42,7 @@ Font* lovrFontInit(Font* font, Rasterizer* rasterizer);
 #define lovrFontCreate(...) lovrFontInit(lovrAlloc(Font), __VA_ARGS__)
 void lovrFontDestroy(void* ref);
 Rasterizer* lovrFontGetRasterizer(Font* font);
-void lovrFontRender(Font* font, const char* str, float wrap, HorizontalAlign halign, VerticalAlign valign, float* vertices, float* offsety, uint32_t* vertexCount);
+void lovrFontRender(Font* font, const char* str, size_t length, float wrap, HorizontalAlign halign, VerticalAlign valign, float* vertices, float* offsety, uint32_t* vertexCount);
 float lovrFontGetWidth(Font* font, const char* string, float wrap);
 float lovrFontGetHeight(Font* font);
 float lovrFontGetAscent(Font* font);
diff --git a/src/graphics/graphics.c b/src/graphics/graphics.c
index be8df1b6..bbd73ed9 100644
--- a/src/graphics/graphics.c
+++ b/src/graphics/graphics.c
@@ -879,14 +879,14 @@ void lovrGraphicsSkybox(Texture* texture, float angle, float ax, float ay, float
   });
 }
 
-void lovrGraphicsPrint(const char* str, mat4 transform, float wrap, HorizontalAlign halign, VerticalAlign valign) {
+void lovrGraphicsPrint(const char* str, size_t length, mat4 transform, float wrap, HorizontalAlign halign, VerticalAlign valign) {
   Font* font = lovrGraphicsGetFont();
   float scale = 1 / font->pixelDensity;
   float offsety;
   uint32_t vertexCount;
-  uint32_t maxVertices = strlen(str) * 6;
+  uint32_t maxVertices = length * 6;
   float* vertices = lovrGraphicsGetVertexPointer(maxVertices);
-  lovrFontRender(font, str, wrap, halign, valign, vertices, &offsety, &vertexCount);
+  lovrFontRender(font, str, length, wrap, halign, valign, vertices, &offsety, &vertexCount);
 
   Pipeline pipeline = state.pipeline;
   pipeline.alphaSampling = true;
diff --git a/src/graphics/graphics.h b/src/graphics/graphics.h
index 83edd5d3..9e7de846 100644
--- a/src/graphics/graphics.h
+++ b/src/graphics/graphics.h
@@ -233,7 +233,7 @@ void lovrGraphicsCircle(DrawStyle style, Material* material, mat4 transform, int
 void lovrGraphicsCylinder(Material* material, float x1, float y1, float z1, float x2, float y2, float z2, float r1, float r2, bool capped, int segments);
 void lovrGraphicsSphere(Material* material, mat4 transform, int segments);
 void lovrGraphicsSkybox(Texture* texture, float angle, float ax, float ay, float az);
-void lovrGraphicsPrint(const char* str, mat4 transform, float wrap, HorizontalAlign halign, VerticalAlign valign);
+void lovrGraphicsPrint(const char* str, size_t length, mat4 transform, float wrap, HorizontalAlign halign, VerticalAlign valign);
 void lovrGraphicsFill(Texture* texture, float u, float v, float w, float h);
 #define lovrGraphicsStencil lovrGpuStencil
 #define lovrGraphicsCompute lovrGpuCompute