diff --git a/packages/seacas/libraries/aprepro_lib/CMakeLists.txt b/packages/seacas/libraries/aprepro_lib/CMakeLists.txt
index e339e27fe8..5d7a208104 100644
--- a/packages/seacas/libraries/aprepro_lib/CMakeLists.txt
+++ b/packages/seacas/libraries/aprepro_lib/CMakeLists.txt
@@ -36,7 +36,6 @@ SET(HEADERS
   aprepro.h
   apr_symrec.h
   apr_tokenize.h
-  aprepro_parser.h
 )
 
 SET(SOURCES