diff --git a/backend/zint.h b/backend/zint.h
index 0d3e532e..8160a0ed 100644
--- a/backend/zint.h
+++ b/backend/zint.h
@@ -316,8 +316,6 @@ extern "C" {
     ZINT_EXTERN int ZBarcode_Encode_and_Print(struct zint_symbol *symbol, unsigned char *input, int length, int rotate_angle);
     ZINT_EXTERN int ZBarcode_Encode_File_and_Print(struct zint_symbol *symbol, char *filename, int rotate_angle);
 
-    ZINT_EXTERN int ZBarcode_Render(struct zint_symbol *symbol, const float width, const float height);
-
     ZINT_EXTERN int ZBarcode_Buffer(struct zint_symbol *symbol, int rotate_angle);
     ZINT_EXTERN int ZBarcode_Buffer_Vector(struct zint_symbol *symbol, int rotate_angle);
     ZINT_EXTERN int ZBarcode_Encode_and_Buffer(struct zint_symbol *symbol, unsigned char *input, int length, int rotate_angle);