diff --git a/configure b/configure
index 327863c8..87207b62 100755
--- a/configure
+++ b/configure
@@ -264,7 +264,7 @@ xno|x) printf "disabled\n" ; optimize=no ;;
 esac
 
 test "$optimize" = no || tryflag CFLAGS_AUTO -Os || tryflag CFLAGS_AUTO -O2
-test "$optimize" = yes && optimize="internal,malloc,math,string"
+test "$optimize" = yes && optimize="internal,malloc,string"
 
 if fnmatch 'no|size' "$optimize" ; then :
 else