diff --git a/Makefile.am b/Makefile.am
index 96e2ca4..7af3b79 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -82,6 +82,7 @@ EXTRA_DIST =	pkg.m4 \
 		tests/lib1/malformed-1.pc \
 		tests/lib1/malformed-quoting.pc \
 		tests/lib1/explicit-sysroot.pc \
+		tests/lib1/escaped-backslash.pc \
 		tests/test_env.sh \
 		$(test_scripts) \
 		doc/conf.py \