diff --git a/scripts/extra/install_custom_ctypes.sh b/scripts/extra/install_custom_ctypes.sh
index cd0159cf85..e546f587a7 100755
--- a/scripts/extra/install_custom_ctypes.sh
+++ b/scripts/extra/install_custom_ctypes.sh
@@ -15,7 +15,7 @@
 
 # Initialise our bash functions
 TOPDIR=$(dirname $(realpath ${BASH_SOURCE}))
-source "${TOPDIR}"/utils.sh
+source "${TOPDIR}"/../utils.sh
 
 # Function to display help message
 show_help() {