diff --git a/sdl2.m4 b/sdl2.m4
index c060ce818..302b419c0 100644
--- a/sdl2.m4
+++ b/sdl2.m4
@@ -10,7 +10,7 @@
 dnl AM_PATH_SDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
 dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS
 dnl
-AC_DEFUN([AM_PATH_SDL],
+AC_DEFUN([AM_PATH_SDL2],
 [dnl 
 dnl Get the cflags and libraries from the sdl2-config script
 dnl
diff --git a/test/acinclude.m4 b/test/acinclude.m4
index 1124207c3..ead69e514 100644
--- a/test/acinclude.m4
+++ b/test/acinclude.m4
@@ -10,7 +10,7 @@
 dnl AM_PATH_SDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
 dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS
 dnl
-AC_DEFUN([AM_PATH_SDL],
+AC_DEFUN([AM_PATH_SDL2],
 [dnl 
 dnl Get the cflags and libraries from the sdl2-config script
 dnl
diff --git a/test/aclocal.m4 b/test/aclocal.m4
index 1124207c3..ead69e514 100644
--- a/test/aclocal.m4
+++ b/test/aclocal.m4
@@ -10,7 +10,7 @@
 dnl AM_PATH_SDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
 dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS
 dnl
-AC_DEFUN([AM_PATH_SDL],
+AC_DEFUN([AM_PATH_SDL2],
 [dnl 
 dnl Get the cflags and libraries from the sdl2-config script
 dnl
diff --git a/test/configure.in b/test/configure.in
index 8af776f59..263c3529a 100644
--- a/test/configure.in
+++ b/test/configure.in
@@ -66,7 +66,7 @@ AC_SUBST(MATHLIB)
 
 dnl Check for SDL
 SDL_VERSION=2.0.0
-AM_PATH_SDL($SDL_VERSION,
+AM_PATH_SDL2($SDL_VERSION,
             :,
 	    AC_MSG_ERROR([*** SDL version $SDL_VERSION not found!])
 )