diff --git a/libguile-ltdl/ChangeLog b/libguile-ltdl/ChangeLog
index 2f24c2df0..6d5286a5d 100644
--- a/libguile-ltdl/ChangeLog
+++ b/libguile-ltdl/ChangeLog
@@ -1,3 +1,8 @@
+2002-10-27  Gary Houston  <ghouston@arglist.com>
+
+	* upstream/Makefile.am (ltdl.h.diff, ltdl.c.diff): add $(srcdir)
+	first file in diff commands.
+
 2002-10-25  Marius Vollmer  <marius.vollmer@uni-dortmund.de>
 
 	* upstream/ltdl.c: New copy from libtool 1.4.3.
diff --git a/libguile-ltdl/upstream/Makefile.am b/libguile-ltdl/upstream/Makefile.am
index 9f8782e81..9d9fc2632 100644
--- a/libguile-ltdl/upstream/Makefile.am
+++ b/libguile-ltdl/upstream/Makefile.am
@@ -43,7 +43,7 @@ ltdl.h.diff: ltdl.h $(srcdir)/../raw-ltdl.h
 	  -e 's/SCM_INSERTED_DLSYMLIST_STRUCT_DECL //go;' \
 	  raw-ltdl.guilemod.h.tmp
 	mv raw-ltdl.guilemod.h.tmp raw-ltdl.guilemod.h
-	diff -ru ltdl.h raw-ltdl.guilemod.h > ltdl.h.diff; \
+	diff -ru $(srcdir)/ltdl.h raw-ltdl.guilemod.h > ltdl.h.diff; \
 	  test "$$?" -eq 1
 
 ltdl.c.diff: ltdl.c $(srcdir)/../raw-ltdl.c
@@ -55,7 +55,7 @@ ltdl.c.diff: ltdl.c $(srcdir)/../raw-ltdl.c
 	  -e 's/SCM_INSERTED_DLSYMLIST_STRUCT_DECL //go;' \
 	  raw-ltdl.guilemod.c.tmp
 	mv raw-ltdl.guilemod.c.tmp raw-ltdl.guilemod.c
-	diff -ru ltdl.c raw-ltdl.guilemod.c > ltdl.c.diff; \
+	diff -ru $(srcdir)/ltdl.c raw-ltdl.guilemod.c > ltdl.c.diff; \
 	  test "$$?" -eq 1
 
 CLEANFILES := \