diff --git a/testsuite/Makefile.in b/testsuite/Makefile.in
index 5058a37581f329166abf4d1e0be989770409e1eb..6eef3dc30ef17ad736c0b25ec15d06dc481bd6da 100644
--- a/testsuite/Makefile.in
+++ b/testsuite/Makefile.in
@@ -21,7 +21,7 @@ TS_NETTLE_SOURCES = aes-test.c arcfour-test.c arctwo-test.c \
 		    sha384-test.c sha512-test.c \
 		    serpent-test.c twofish-test.c \
 		    knuth-lfib-test.c \
-		    cbc-test.c ctr-test.c hmac-test.c \
+		    cbc-test.c ctr-test.c gcm-test.c hmac-test.c \
 		    buffer-test.c yarrow-test.c
 
 TS_HOGWEED_SOURCES = sexp-test.c sexp-format-test.c \