diff --git a/contrib/alos2filter/CMakeLists.txt b/contrib/alos2filter/CMakeLists.txt
index 464e7df..c5ef36d 100644
--- a/contrib/alos2filter/CMakeLists.txt
+++ b/contrib/alos2filter/CMakeLists.txt
@@ -3,6 +3,7 @@ set_target_properties(alos2filter PROPERTIES
     PREFIX ""
     OUTPUT_NAME libalos2filter
     SUFFIX .so)
+target_link_libraries(alos2filter PUBLIC FFTW::Float)
 
 InstallSameDir(
     alos2filter