diff --git a/build/pkgs/lrcalc/spkg-install.in b/build/pkgs/lrcalc/spkg-install.in
index 46b765298c6..d6665bfb427 100644
--- a/build/pkgs/lrcalc/spkg-install.in
+++ b/build/pkgs/lrcalc/spkg-install.in
@@ -1,7 +1,8 @@
 cd src
 
 # Use newer version of config.guess and config.sub (see Trac #19725)
-cp "$SAGE_ROOT"/config/config.* .
+cp "$SAGE_ROOT"/config/config.guess .
+cp "$SAGE_ROOT"/config/config.sub .
 
 sdh_configure
 sdh_make