diff --git a/cmake/ConkyPlatformChecks.cmake b/cmake/ConkyPlatformChecks.cmake
index a9810887..2bf4c0a9 100644
--- a/cmake/ConkyPlatformChecks.cmake
+++ b/cmake/ConkyPlatformChecks.cmake
@@ -141,7 +141,7 @@ if(BUILD_MYSQL)
 endif(BUILD_MYSQL)
 
 if(BUILD_WLAN)
-	check_include_files(iwlib.h IWLIB_H -D_GNU_SOURCE)
+	check_include_file(iwlib.h IWLIB_H -D_GNU_SOURCE)
 	if(NOT IWLIB_H)
 		message(FATAL_ERROR "Unable to find iwlib.h")
 	endif(NOT IWLIB_H)