diff --git a/CMakeLists.txt b/CMakeLists.txt
index 82c286b..d88f1bd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -49,7 +49,7 @@ target_link_libraries(${TARGET_NAME} PUBLIC
     rte
 )
 
-if ($LINUX)
+if (${LINUX})
     target_link_libraries(${TARGET_NAME} PUBLIC gfortran)
 endif()