diff --git a/aegisub/configure.in b/aegisub/configure.in
index a1b36368a..808453315 100644
--- a/aegisub/configure.in
+++ b/aegisub/configure.in
@@ -424,9 +424,7 @@ if test "$agi_cv_with_iconv" = "no" ; then
   AC_MSG_FAILURE([Please install a working iconv library.])
 fi
 
-if test "$agi_cv_with_iconv" = "yes"; then
-
-  AC_AGI_COMPILE([iconv (const)], [iconv_const], [$ICONV_CFLAGS], [$ICONV_LDFLAGS],[
+AC_AGI_COMPILE([iconv (const)], [iconv_const], [$ICONV_CFLAGS], [$ICONV_LDFLAGS],[
 #include <iconv.h>
 int main(void) {
   iconv_t cd = iconv_open("UTF-16", "UTF-8");
@@ -437,9 +435,8 @@ int main(void) {
   return 0;
 } ])
 
-  if test "$agi_cv_with_iconv_const" = "yes"; then
-    AC_DEFINE(AGI_ICONV_CONST, 1, [Enable if your version if iconv is const (annoying!)])
-  fi
+if test "$agi_cv_with_iconv_const" = "yes"; then
+  AC_DEFINE(AGI_ICONV_CONST, 1, [Enable if iconv expects the in argument to be const])
 fi