diff --git a/src/maths/sparse/spsmp.c b/src/maths/sparse/spsmp.c
index 464de3b2f..c85d98468 100644
--- a/src/maths/sparse/spsmp.c
+++ b/src/maths/sparse/spsmp.c
@@ -281,7 +281,7 @@ SMPpreOrder(SMPmatrix *Matrix)
 void
 SMPprintRHS(SMPmatrix *Matrix, char *Filename, RealVector RHS, RealVector iRHS)
 {
-        spFileVector( Matrix->SPmatrix, Filename, RHS, iRHS );
+    spFileVector( Matrix->SPmatrix, Filename, RHS, iRHS );
 }
 
 /*