diff --git a/CMakeLists.txt b/CMakeLists.txt
index b7e27e0..30068ad 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -17,6 +17,8 @@ if(NOT NLINLINE_INCLUDE)
   message(FATAL_ERROR "*** required nlinline.h include file not found.\nInstall nlinline: https://github.com/virtualsquare/nlinline")
 endif()
 
+find_library(PAM_LIBRARY NAMES pam REQUIRED)
+
 if(LIBSECURITYDIR)
 	set(CMAKE_INSTALL_PAMDIR ${LIBSECURITYDIR})
 else()
@@ -34,6 +36,10 @@ add_library(pam_groupnet SHARED pam_groupnet.c pam_net_checkgroup.c)
 set_target_properties(pam_groupnet PROPERTIES PREFIX "")
 target_compile_definitions(pam_groupnet PUBLIC PAM_GROUPNET)
 
+target_link_libraries(pam_newnet PRIVATE ${PAM_LIBRARY})
+target_link_libraries(pam_usernet PRIVATE ${PAM_LIBRARY})
+target_link_libraries(pam_groupnet PRIVATE ${PAM_LIBRARY})
+
 install(TARGETS pam_newnet pam_usernet pam_groupnet
 		DESTINATION ${CMAKE_INSTALL_PAMDIR})