diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3c043c73c0e0cdd3247748e1d2a1e03b90fdfdf7..be43b8cdb89d5155f618de5c9dbaae5e97eb776d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -55,6 +55,7 @@ set(API_HEADERS_CPP
 	${API_HEADERS_CPP_DIR}/log.h
 	${API_HEADERS_CPP_DIR}/basicmath.h
 	${API_HEADERS_CPP_DIR}/eistype.h
+	${API_HEADERS_CPP_DIR}/spectra.h
 	${API_HEADERS_CPP_DIR}/normalize.h
 	${API_HEADERS_CPP_DIR}/translators.h
 )