diff --git a/desmume/configure.ac b/desmume/configure.ac
index 608169d0a..f3bb5ccfb 100644
--- a/desmume/configure.ac
+++ b/desmume/configure.ac
@@ -51,7 +51,7 @@ AC_CHECK_HEADERS([GL/glu.h])
 
 dnl - Check for GTK and/or libglade
 AC_CHECK_TOOL(HAVE_PKG, pkg-config)
-AC_PROVIDE_IFELSE([PKG_PROG_aPKG_CONFIG], [
+AC_PROVIDE_IFELSE([PKG_PROG_PKG_CONFIG], [
   if test ! "x$HAVE_PKG" = "x" ; then
     PKG_CHECK_MODULES(GTK,
                       "gtk+-2.0",