diff --git a/CMake/CurlTests.c b/CMake/CurlTests.c
index 9f5a2678aa..2da96eccc8 100644
--- a/CMake/CurlTests.c
+++ b/CMake/CurlTests.c
@@ -118,7 +118,6 @@ int main(void)
 #include <stdlib.h>
 #include <stdarg.h>
 #include <string.h>
-#include <float.h>
 int main(void)
 {
   return 0;