diff --git a/CMakeLists.txt b/CMakeLists.txt
index cfa85b267..457247ed0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -727,7 +727,7 @@ if (NOT ENABLE_EXTERNAL_LIBRARIES)
     endif()
 elseif(ENABLE_EXTERNAL_LIBRARIES STREQUAL "AUTO")
     find_package(Boost)
-    find_package(FFTW3T)
+    find_package(FFTW3F)
     if(NOT ANDROID)
         find_package(LibUSB)
     endif()