--- libosmocore-0.6.0/configure.ac
+++ libosmocore-0.6.0/configure.ac
@@ -77,7 +77,7 @@
 CHECK_TM_INCLUDES_TM_GMTOFF
 
 dnl Generate the output
-AC_CONFIG_HEADER(config.h)
+AC_CONFIG_HEADERS(config.h)
 
 AC_ARG_ENABLE(talloc,
 	[AS_HELP_STRING(
