diff --git a/CMakeLists.txt b/CMakeLists.txt
index fa9daa2..984f38f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -231,8 +231,8 @@ IF(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD" OR CMAKE_SYSTEM_NAME STREQUAL "Darwin")
     link_directories( /usr/local/lib )
 ENDIF()
 
-IF (CMAKE_SYSTEM_NAME STREQUAL Windows)
-    FIND_PATH(GETOPT_INCLUDE_DIR NAMES getopt.h AND LSQUIC_TESTS AND LSQUIC_BIN)
+IF (CMAKE_SYSTEM_NAME STREQUAL Windows AND LSQUIC_TESTS AND LSQUIC_BIN)
+    FIND_PATH(GETOPT_INCLUDE_DIR NAMES getopt.h)
     IF (GETOPT_INCLUDE_DIR)
         INCLUDE_DIRECTORIES(${GETOPT_INCLUDE_DIR})
     ELSE()