diff --git a/bin/launch.sh b/bin/launch.sh
index a8c1da4..3c10863 100755
--- a/bin/launch.sh
+++ b/bin/launch.sh
@@ -1,10 +1,10 @@
 #!/bin/bash
 
-SCRIPT_PATH=`dirname $(realpath $0)`
+SCRIPT_PATH=$(dirname "$(realpath "$0")")
 export LD_LIBRARY_PATH=${SCRIPT_PATH}
 
 # Workaround waiting for a fix https://github.com/lloyd/yajl/issues/222
 export LC_NUMERIC=en_US.UTF-8
 
-cd ${SCRIPT_PATH}/..
-${SCRIPT_PATH}/samrewritten $@
+cd "${SCRIPT_PATH}"/..
+"${SCRIPT_PATH}"/samrewritten "$@"
diff --git a/bin/valgrind.sh b/bin/valgrind.sh
index 76b3a22..fbf5a38 100755
--- a/bin/valgrind.sh
+++ b/bin/valgrind.sh
@@ -1,12 +1,12 @@
 #!/bin/bash
 
-SCRIPT_PATH=`dirname $(realpath $0)`
+SCRIPT_PATH=$(dirname "$(realpath "$0")")
 export LD_LIBRARY_PATH=${SCRIPT_PATH}
 
 # Workaround waiting for a fix https://github.com/lloyd/yajl/issues/222
 export LC_NUMERIC=en_US.UTF-8
 
-cd ${SCRIPT_PATH}/..
+cd "${SCRIPT_PATH}"/..
 rm -f /tmp/sam-massif.out
 valgrind --tool=massif --massif-out-file=/tmp/sam-massif.out ${SCRIPT_PATH}/samrewritten $@
-massif-visualizer /tmp/sam-massif.out
\ No newline at end of file
+massif-visualizer /tmp/sam-massif.out