diff --git a/julia.spec b/julia.spec
index cb5ecf3..5822e6f 100644
--- a/julia.spec
+++ b/julia.spec
@@ -224,9 +224,9 @@ Requires:       julia-compat-devel = %{version}
 Requires:       julia-devel = %{version}
 %endif
 
-Requires(post): /sbin/update-alternatives
+Requires(post): %{_sbindir}/update-alternatives
 Requires(post): /sbin/ldconfig
-Requires(postun): /sbin/update-alternatives
+Requires(postun): %{_sbindir}/update-alternatives
 Requires(postun): /sbin/ldconfig
 
 Recommends:     curl
@@ -540,13 +540,13 @@ find %{buildroot} -type f -name "*.la" -delete -print
 patchelf --set-rpath "%{_libdir}/julia:%{_libdir}:%{_prefix}/lib" "%{buildroot}%{_libdir}/julia/libmpfr.so"
 
 %post
-/sbin/update-alternatives --install %{_bindir}/julia \
+%{_sbindir}/update-alternatives --install %{_bindir}/julia \
     julia %{_bindir}/julia-base 5
 /sbin/ldconfig
 
 %postun
 if [ ! -f %{_bindir}/julia-base ] ; then
-    /sbin/update-alternatives --remove julia %{_bindir}/julia-base
+    %{_sbindir}/update-alternatives --remove julia %{_bindir}/julia-base
 fi
 /sbin/ldconfig