diff --git a/Makefile b/Makefile
index b6c02c08a..89f5c07c8 100644
--- a/Makefile
+++ b/Makefile
@@ -66,7 +66,6 @@ core-files = \
 	$(js-src-dir)/image-support/image.js \
 	$(js-src-dir)/image-support/exif.js \
 	$(js-src-dir)/identify.js \
-	$(js-src-dir)/identify.js \
 	$(js-src-dir)/image-support/validation.image.js \
 	$(js-src-dir)/session.js \
 	$(js-src-dir)/session.ajax.requester.js \