diff --git a/waflib/Configure.py b/waflib/Configure.py
index 763f4668..a8080b6f 100644
--- a/waflib/Configure.py
+++ b/waflib/Configure.py
@@ -496,7 +496,7 @@ def find_binary(self, filenames, exts, paths):
 		for ext in exts:
 			exe_name = f + ext
 			if os.path.isabs(exe_name):
-				if os.path.isfile(exe_name) and os.access(x, os.X_OK):
+				if os.path.isfile(exe_name) and os.access(exe_name, os.X_OK):
 					return exe_name
 			else:
 				for path in paths: