diff --git a/changes/bug6778 b/changes/bug6778
index 3585140b3b7a95cad3537fadef808198b691546e..4448d15089d905f2541d6283eac4e75dabe67c52 100644
--- a/changes/bug6778
+++ b/changes/bug6778
@@ -1,3 +1,4 @@
   o Minor bugfixes:
     - Avoid a warning when building common_sha1.i out of tree. Fixes bug
       6778; bugfix on 0.2.4.1-alpha.
+    - Fix a mis-declared dependency on src/common/crypto.c.
diff --git a/src/common/include.am b/src/common/include.am
index c6fde42781951ae75727f061d97d93e26f45220c..299c92e0651227eda7a5499b4e3f22d5a85e892e 100644
--- a/src/common/include.am
+++ b/src/common/include.am
@@ -72,4 +72,4 @@ src/common/common_sha1.i: $(libor_SOURCES) $(libor_crypto_a_SOURCES) $(COMMONHEA
 	fi
 
 src/common/util_codedigest.o: src/common/common_sha1.i
-src/common/crypto.c: src/common/sha256.c
+src/common/crypto.o: src/common/sha256.c