diff --git a/matrix.hpp b/matrix.hpp
index 1ab4715..e4e761f 100644
--- a/matrix.hpp
+++ b/matrix.hpp
@@ -137,9 +137,9 @@ public:
   }
   // Fixme: This is very dumb
   const vector get_eigenvalues() {
-	  if (this->is_diagonal())
-		  return this->get_diagonal();
-	  return vector(0);
+    if (this->is_diagonal())
+      return this->get_diagonal();
+    return vector(0);
   }
   const bool is_eigenvalue(cnumber z) const {
     return ((*this - (this->I() * z)).determinant() == 0);