diff --git a/examples/SpectralMethod/Makefile b/examples/SpectralMethod/Makefile
index 08f4dded4..58df90a64 100644
--- a/examples/SpectralMethod/Makefile
+++ b/examples/SpectralMethod/Makefile
@@ -1,6 +1,6 @@
 
-include ${PETSC_DIR}/lib/petsc-conf/variables
-include ${PETSC_DIR}/lib/petsc-conf/rules
+include ${PETSC_DIR}/lib/petsc/conf/variables
+include ${PETSC_DIR}/lib/petsc/conf/rules
 
 
 run16x16x16: