diff --git a/code/Makefile b/code/Makefile
index 90e9d61eb..7d4446350 100644
--- a/code/Makefile
+++ b/code/Makefile
@@ -17,7 +17,7 @@ SHELL = /bin/sh
 # STANDARD_CHECK = checking for Fortran 2008, compiler dependend
 ########################################################################################
 
-include $(PETSC_DIR)/$(PETSC_ARCH)/lib/petsc/conf/variables
+include $(PETSC_DIR)/$(PETSC_ARCH)/lib/petsc/conf/petscvariables
 INCLUDE_DIRS := $(PETSC_FC_INCLUDES) -DPETSc -I../lib
 LIBRARIES    := $(PETSC_WITH_EXTERNAL_LIB)
 COMPILERNAME ?= $(FC)
diff --git a/examples/SpectralMethod/Makefile b/examples/SpectralMethod/Makefile
index 6472b5900..da1fa81f6 100644
--- a/examples/SpectralMethod/Makefile
+++ b/examples/SpectralMethod/Makefile
@@ -1,8 +1,4 @@
-
-include ${PETSC_DIR}/${PETSC_ARCH}/lib/petsc/conf/variables
-include ${PETSC_DIR}/${PETSC_ARCH}/lib/petsc/conf/rules
-
-
+SHELL = /bin/sh
 run16x16x16:
 	-@${MPIEXEC} -n 2 DAMASK_spectral -l tensionX.load -g 20grains16x16x16.geom