diff --git a/configure.in b/configure.in
index 316edf57..27660546 100644
--- a/configure.in
+++ b/configure.in
@@ -544,7 +544,7 @@ AC_ARG_ENABLE(randr,
 if test "x$enableval" = "xyes"; then
   AC_MSG_RESULT([yes])
   AC_CHECK_LIB(Xrandr, XRRQueryExtension,
-    AC_MSG_CHECKING([for X11/extensions/randr.h])
+    AC_MSG_CHECKING([for X11/extensions/Xrandr.h])
     AC_TRY_COMPILE(
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
@@ -568,7 +568,7 @@ AC_ARG_ENABLE(randr1.2,
 if test "x$enableval" = "xyes"; then
   AC_MSG_RESULT([yes])
   AC_CHECK_LIB(Xrandr, XRRQueryExtension,
-    AC_MSG_CHECKING([for X11/extensions/randr.h])
+    AC_MSG_CHECKING([for X11/extensions/Xrandr.h])
     AC_TRY_COMPILE(
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>