diff --git a/src/nonFree/sift/CMakeLists.txt b/src/nonFree/sift/CMakeLists.txt
index a61afeb..93a1972 100644
--- a/src/nonFree/sift/CMakeLists.txt
+++ b/src/nonFree/sift/CMakeLists.txt
@@ -62,6 +62,8 @@
   PROPERTY FOLDER nonFree
 )
 
+target_link_libraries(aliceVision_vlsift PUBLIC -lm)
+
 install(
   DIRECTORY .
   DESTINATION include/aliceVision_dependencies/nonFree/sift