diff --git a/src/@x13/run.m b/src/@x13/run.m
index e9daa3fa835043e7ecb7011af6d009963a5ed3a5..1d0d24af8b78e55f009dca25fa00a927ab5f5db5 100644
--- a/src/@x13/run.m
+++ b/src/@x13/run.m
@@ -31,11 +31,7 @@ if ~exist(x13b, 'file')
 end
 
 % Run spc file.
-if ispc
-    [errorflag, msg] = system(sprintf('"%s" %s', x13b, basename));
-else
-    [errorflag, msg] = system(sprintf('%s %s', x13b, basename));
-end
+[errorflag, msg] = system(sprintf('"%s" %s', x13b, basename));
 
 if errorflag
     skipline()