diff --git a/Tools/lameWrapper b/Tools/lameWrapper
index ee29539..281218a 100755
--- a/Tools/lameWrapper
+++ b/Tools/lameWrapper
@@ -1,3 +1,3 @@
 #!/bin/bash -l
 
-exec lame $*
+exec lame "$*"
diff --git a/Tools/lilyWrapper b/Tools/lilyWrapper
index 0b7c07a..50b1ab0 100755
--- a/Tools/lilyWrapper
+++ b/Tools/lilyWrapper
@@ -1,6 +1,6 @@
 #!/bin/bash -l
 
-export PATH=`dirname $1`:$PATH
+export PATH="`dirname $1`":$PATH
 exec $*
 
 
diff --git a/Tools/mmaWrapper b/Tools/mmaWrapper
index 368729e..ace5274 100755
--- a/Tools/mmaWrapper
+++ b/Tools/mmaWrapper
@@ -1,4 +1,4 @@
 #!/bin/sh -l
 
-cd ${0%/*/*}/share/mma
-exec ${0%/*}/mma.py $*
+cd "${0%/*/*}"/share/mma
+exec "${0%/*}"/mma.py $*