--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,6 +5,8 @@ if("${CMAKE_BUILD_TYPE}" STREQUAL "")
 set(CMAKE_BUILD_TYPE Release)
 endif("${CMAKE_BUILD_TYPE}" STREQUAL "")
 
+option(BUILD_SHARED_LIBS "Build shared libraries" ON)
+
 include(GNUInstallDirs)
 
 # Warning: don't use the UB sanitizer in production builds. It can introduce timing side-channels
@@ -31,10 +33,12 @@ endif(NOT DISABLE_DOCS)
 configure_file(config.h.in config.h)
 include_directories(${CMAKE_CURRENT_BINARY_DIR})
 
+if(BUILD_SHARED_LIBS)
 add_library(aes_siv SHARED aes_siv.c)
 target_include_directories(aes_siv PUBLIC ${OPENSSL_INCLUDE_DIR})
 target_link_libraries(aes_siv ${OPENSSL_CRYPTO_LIBRARY})
 set_target_properties(aes_siv PROPERTIES VERSION "1.0.1" SOVERSION 1)
+endif()
 
 add_library(aes_siv_static STATIC aes_siv.c)
 target_include_directories(aes_siv_static PUBLIC ${OPENSSL_INCLUDE_DIR})
@@ -63,7 +67,9 @@ endif(ENABLE_SANITIZER)
 add_executable(bench EXCLUDE_FROM_ALL bench.c)
 target_link_libraries(bench aes_siv_static)
 
+if(BUILD_SHARED_LIBS)
 install(TARGETS aes_siv LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})
+endif()
 install(TARGETS aes_siv_static ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
 install(FILES aes_siv.h DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})