diff --git a/PIL/Image.py b/PIL/Image.py
index c643e24d9..77f2836c0 100644
--- a/PIL/Image.py
+++ b/PIL/Image.py
@@ -2036,7 +2036,7 @@ def _check_size(size):
     if len(size) != 2:
         raise ValueError("Size must be a tuple of length 2")
     if size[0] < 0 or size[1] < 0:
-        raise ValueError("Width and Height must be => 0")
+        raise ValueError("Width and height must be >= 0")
 
     return True