diff --git a/src/USER-FEP/Install.sh b/src/USER-FEP/Install.sh
index f6535f4817..695d2baf69 100644
--- a/src/USER-FEP/Install.sh
+++ b/src/USER-FEP/Install.sh
@@ -46,6 +46,8 @@ action pair_lj_cut_soft.cpp
 action pair_lj_cut_soft.h
 action pair_lj_cut_tip4p_long_soft.cpp    pppm_tip4p.cpp
 action pair_lj_cut_tip4p_long_soft.h      pppm_tip4p.cpp
+action pair_morse_soft.cpp
+action pair_morse_soft.h
 action pair_tip4p_long_soft.cpp           pppm_tip4p.cpp
 action pair_tip4p_long_soft.h             pppm_tip4p.cpp