diff --git a/examples/texbynum/run.sh b/examples/texbynum/run.sh
index c508c6c..5daa9ec 100755
--- a/examples/texbynum/run.sh
+++ b/examples/texbynum/run.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
-export PATH=../../bin:$PATH
+export PATH="../../bin:$PATH"
 
 ebsynth -patchsize 3 -uniformity 1000 -style source_photo.png -guide source_segment.png target_segment.png -output output.png