diff --git a/packages/numlib/petsc/petsc-3.3-p5 b/packages/numlib/petsc/petsc-3.3-p5
index a93d51c..8c9a373 100755
--- a/packages/numlib/petsc/petsc-3.3-p5
+++ b/packages/numlib/petsc/petsc-3.3-p5
@@ -29,6 +29,7 @@ BUILDDIR=$SRCDIR
 # --enable-progress-threads
 CONFIGURE_OPTS="
         --CC=$MPICC --CXX=$MPICXX --FC=$MPIFC \
+		--with-mpiexec=mpirun \
 		PETSC_ARCH=$ARCH \
 		--download-f-blas-lapack=$SRC_POOL/fblaslapack-3.1.1.tar.gz \
 		--with-scalar-type=complex \