diff --git a/env/DAMASK.zsh b/env/DAMASK.zsh
index deea2b072..2d2bc9aa0 100644
--- a/env/DAMASK.zsh
+++ b/env/DAMASK.zsh
@@ -23,15 +23,15 @@ source $DAMASK_ROOT/CONFIG
 unset -f set
 
 # add DAMASK_BIN if present
-[ "x$DAMASK_BIN" != "x" ] && PATH=$DAMASK_BIN:$PATH
+[ "x$DAMASK_BIN != x" ] && PATH=$DAMASK_BIN:$PATH
 
 SOLVER=$(type -p DAMASK_spectral || true 2>/dev/null)
-[ "x$SOLVER" == "x" ] && SOLVER='Not found!'
+[ "x$SOLVER == x" ] && SOLVER='Not found!'
 
 PROCESSING=$(type -p postResults || true 2>/dev/null)
-[ "x$PROCESSING" == "x" ] && PROCESSING='Not found!'
+[ "x$PROCESSING == x" ] && PROCESSING='Not found!'
 
-[ "x$DAMASK_NUM_THREADS" == "x" ] && DAMASK_NUM_THREADS=1
+[ "x$DAMASK_NUM_THREADS == x" ] && DAMASK_NUM_THREADS=1
 
 # currently, there is no information that unlimited causes problems
 # still,  http://software.intel.com/en-us/forums/topic/501500 suggest to fix it