diff --git a/source/schoolbook.sty b/source/schoolbook.sty
index caa9f822dc1ea18dd3eb723c8347b8fc5dd594a8..94b6eef3206af204c4aaf37459d48f16ac331886 100644
--- a/source/schoolbook.sty
+++ b/source/schoolbook.sty
@@ -75,5 +75,6 @@
     \fontsize\dimen@\@tempdima\tt@family}
 
 \if@originalsc \endinput \fi
+\@ifl@aded{fd}{t1qcs}{}{\@input{t1qcs.fd}}
 \DeclareFontShape{T1}{qcs}{m}{sc}{ <-> s*[0.95] ec-qcsr-scB}{}
 \DeclareFontShape{T1}{qcs}{b}{sc}{ <-> s*[0.95] ec-qcsb-scB}{}