diff --git a/scripts/run.linux.sh b/scripts/run.linux.sh
index 4d28729c..3dff2d68 100644
--- a/scripts/run.linux.sh
+++ b/scripts/run.linux.sh
@@ -52,7 +52,7 @@ echo -en "travis_fold:start:build_preparation.1\r"
 
 	if [[ ${LUA_VERSION} =~ "5.3" ]]
 	then
-		export INTEROP_DEFINES=-DINTEROP_EXAMPLES=ON -DTESTS_INTEROP_EXAMPLES=ON -DINTEROP_EXAMPLES_SINGLE=ON
+		export INTEROP_DEFINES="-DINTEROP_EXAMPLES=ON -DTESTS_INTEROP_EXAMPLES=ON -DINTEROP_EXAMPLES_SINGLE=ON"
 	else
 		export INTEROP_DEFINES=
 	fi