diff --git a/htdocs/core/lib/images.lib.php b/htdocs/core/lib/images.lib.php
index 6204dd0dd9f..55a39a492c7 100644
--- a/htdocs/core/lib/images.lib.php
+++ b/htdocs/core/lib/images.lib.php
@@ -279,7 +279,7 @@ function dol_imageResizeOrCrop($file, $mode, $newWidth, $newHeight, $src_x = 0,
 			imagepng($imgThumb, $imgThumbName, $newquality);
 			break;
 		case 4:	// Bmp
-			image2wbmp($imgThumb, $imgThumbName);
+			imagewbmp($imgThumb, $imgThumbName);
 			break;
 	}
 
@@ -379,7 +379,7 @@ function correctExifImageOrientation($fileSource, $fileDest, $quality = 95)
 							// Not supported by PHP GD
 							break;
 						case IMAGETYPE_WBMP:    // 15
-							$image = image2wbmp($img, $fileDest);
+							$image = imagewbmp($img, $fileDest);
 							break;
 					}
 
@@ -696,7 +696,7 @@ function vignette($file, $maxWidth = 160, $maxHeight = 120, $extName = '_small',
             // Not supported by PHP GD
 			break;
 		case IMAGETYPE_WBMP:    // 15
-			image2wbmp($imgThumb, $imgThumbName);
+			imagewbmp($imgThumb, $imgThumbName);
 			break;
 	}