diff --git i/CMakeLists.txt w/CMakeLists.txt
index bb6d40cb..30171e7c 100644
--- i/CMakeLists.txt
+++ w/CMakeLists.txt
@@ -176,11 +176,6 @@ if (ENABLE_FUZZERS)
 endif()
 add_subdirectory(src/common)

-set(WITH_SEXP_CLI OFF)
-set(WITH_SEXP_TESTS OFF)
-set(CMAKE_INSTALL_DEFAULT_COMPONENT_NAME development)
-add_subdirectory(src/libsexp EXCLUDE_FROM_ALL)
-
 add_subdirectory(src/lib)
 add_subdirectory(src/rnp)
 add_subdirectory(src/rnpkeys)
diff --git i/src/lib/CMakeLists.txt w/src/lib/CMakeLists.txt
index 086ac57d..b219ef06 100755
--- i/src/lib/CMakeLists.txt
+++ w/src/lib/CMakeLists.txt
@@ -433,7 +433,7 @@ install(TARGETS librnp
       COMPONENT development
   )

-  install(TARGETS librnp-static sexp
+  install(TARGETS librnp-static
     EXPORT rnp-targets
     ARCHIVE
       DESTINATION  "${CMAKE_INSTALL_LIBDIR}"
@@ -441,7 +441,7 @@ install(TARGETS librnp
   )
 else(BUILD_SHARED_LIBS)
 # static libraries only
-install(TARGETS librnp sexp
+install(TARGETS librnp
     EXPORT rnp-targets
     ARCHIVE
       DESTINATION  "${CMAKE_INSTALL_LIBDIR}"