diff --git a/modules/mol/alg/src/CMakeLists.txt b/modules/mol/alg/src/CMakeLists.txt
index bc89272e01548b5f46bbb0e80abd64fafe4782cc..8f2038f96f4ab2dc03bcb9bd4624ca78a3f2003f 100644
--- a/modules/mol/alg/src/CMakeLists.txt
+++ b/modules/mol/alg/src/CMakeLists.txt
@@ -54,7 +54,7 @@ if (ENABLE_IMG)
     entity_to_density.cc
   )
 
-  set(MOL_ALG_DEPS ${MOL_ALG_DEPS} ost_img ost_img_alg)
+  set(MOL_ALG_DEPS ${MOL_ALG_DEPS} ost_img ost_img_alg ost_seq_alg)
 endif()
 
 executable(NAME lddt SOURCES lddt.cc