diff --git a/configure.ac b/configure.ac
index eafbd65..e9d4e79 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2024,6 +2024,8 @@
 		src/glsl/tests/Makefile
 		src/glx/Makefile
 		src/glx/tests/Makefile
+		src/mapi/es1api/Makefile
+		src/mapi/es1api/glesv1_cm.pc
 		src/mapi/es2api/Makefile
 		src/mapi/es2api/glesv2.pc
 		src/mapi/glapi/Makefile