diff --git a/healpix.spec b/healpix.spec
index f690a32..fdf04d2 100644
--- a/healpix.spec
+++ b/healpix.spec
@@ -225,7 +225,7 @@ install -pm 0644 cxxinc/* $RPM_BUILD_ROOT%{_includedir}/healpix
 install -p f90bin/* $RPM_BUILD_ROOT%{_bindir}
 install -p f90lib/* $RPM_BUILD_ROOT%{_libdir}
 # Modules contain API/ABI and thus architecture dependent
-mkdir $RPM_BUILD_ROOT%{_fmoddir}/healpix
+mkdir -p $RPM_BUILD_ROOT%{_fmoddir}/healpix
 install -pm 0644 f90inc/* $RPM_BUILD_ROOT%{_fmoddir}/healpix