--- a/makefile
+++ b/makefile
@@ -182,7 +182,7 @@
 	   ${OMAKE} PETSC_ARCH=${PETSC_ARCH} PETSC_DIR=${PETSC_DIR} SLEPC_DIR=${SLEPC_DIR} allclean-legacy; \
 	fi
 
-clean:: allclean
+clean: allclean
 
 reconfigure:
 	@${PYTHON} ${PETSC_ARCH}/lib/slepc/conf/reconfigure-${PETSC_ARCH}.py
