diff --git a/plug.in b/plug.in
index 63071207c78b1b13ef9ca25aa07ff8c45fb31c47..efd1d996ec0feb37d9d49d7aadb08c2362ec8c5a 100644
--- a/plug.in
+++ b/plug.in
@@ -101,7 +101,7 @@ MYSQL_PLUGIN_ACTIONS(innobase,  [
       AC_CHECK_DECLS(
         [HAVE_SOLARIS_ATOMICS],
         [
-          AC_MSG_CHECKING(checking if pthread_t size is integral)
+          AC_MSG_CHECKING(checking if pthread_t type is integral)
           AC_TRY_RUN(
             [
               #include <pthread.h>