diff --git a/src/ToDo.txt b/src/ToDo.txt
index decb339f..a7ec1d70 100644
--- a/src/ToDo.txt
+++ b/src/ToDo.txt
@@ -31,6 +31,8 @@ short term:
 
 * fix problems in FUNCTIONS of the form (sin(par1)) **DONE** 08-02-18
 
+* fix output problems of the mlog files
+
 * implement table based theory functions (LF stuff)
 
 * if a parameter is not used at all, minuit is still varying it!! This is stupid.
diff --git a/src/classes/PMsrHandler.cpp b/src/classes/PMsrHandler.cpp
index 55f50069..a781538e 100644
--- a/src/classes/PMsrHandler.cpp
+++ b/src/classes/PMsrHandler.cpp
@@ -279,14 +279,16 @@ int PMsrHandler::WriteMsrLogFile()
     f << left << param_iter->fName.Data();
     f << " ";
     // value of the parameter
-    f.width(10);
+    f.width(9);
     f.precision(prec);
     f << left << param_iter->fValue;
+    f << " ";
     // value of step/error/neg.error
-    f.width(12);
+    f.width(11);
     f.precision(prec);
     f << left << param_iter->fStep;
-    f.width(12);
+    f << " ";
+    f.width(11);
     f.precision(prec);
     if ((param_iter->fNoOfParams == 5) || (param_iter->fNoOfParams == 7)) // pos. error given
       if (param_iter->fPosErrorPresent) // pos error is a number
@@ -295,14 +297,17 @@ int PMsrHandler::WriteMsrLogFile()
         f << left << "none";
     else // no pos. error
       f << left << "none";
+    f << " ";
     // boundaries
     if (param_iter->fNoOfParams > 5) {
-      f.width(8);
+      f.width(7);
       f.precision(prec);
       f << left << param_iter->fLowerBoundary;
-      f.width(8);
+      f << " ";
+      f.width(7);
       f.precision(prec);
       f << left << param_iter->fUpperBoundary;
+      f << " ";
     }
     // terminate line
     f << endl;
diff --git a/src/tests/fio_test/fio_test.cpp b/src/tests/fio_test/fio_test.cpp
index 6e5a8bde..c7789ad0 100644
--- a/src/tests/fio_test/fio_test.cpp
+++ b/src/tests/fio_test/fio_test.cpp
@@ -12,19 +12,20 @@ int main()
   }
 
   const int prec=6;
-  double val = 0.258466548916354835498465;
+  double val1 = 0.258466548916354835498465;
+  double val2 = 0.000258466548916354835498465;
 
   f.width(9);
   f.precision(prec);
-  f << left << val;
+  f << left << val1;
   f << " ";
   f.width(9);
   f.precision(prec);
-  f << left << val;
+  f << left << val2;
   f << " ";
   f.width(9);
   f.precision(prec);
-  f << left << val;
+  f << left << val1;
 
   f.close();
 
diff --git a/src/tests/fio_test/fio_test.txt b/src/tests/fio_test/fio_test.txt
deleted file mode 100644
index d1403634..00000000
--- a/src/tests/fio_test/fio_test.txt
+++ /dev/null
@@ -1 +0,0 @@
-0.258467  0.258467  0.258467 
\ No newline at end of file