diff --git a/melodic.tcl b/melodic.tcl
index 8365e634fb5fe525f22f018e9b77eee95cf5617a..5250167417d8c4684fcec7fecb41f7ae6da720aa 100644
--- a/melodic.tcl
+++ b/melodic.tcl
@@ -506,7 +506,7 @@ if { $fmri(st) > 0 } {
 #{{{ motion correction
 
 if { $fmri(mc) != 0 } {
-    fsl:exec "${FSLDIR}/bin/mcflirt -in $INPUT -out prefiltered_func_data_mcf -refvol $target_vol_number" C
+    fsl:exec "${FSLDIR}/bin/mcflirt -in $INPUT -out prefiltered_func_data_mcf -refvol $target_vol_number" -r
     set INPUT prefiltered_func_data_mcf
 }