diff --git a/x230/build.sh b/x230/build.sh
index 296eb36..b1ad4ae 100755
--- a/x230/build.sh
+++ b/x230/build.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-. skulls_common.sh
+source functions.sh
 
 warn_not_root
 
diff --git a/x230/skulls_common.sh b/x230/functions.sh
similarity index 100%
rename from x230/skulls_common.sh
rename to x230/functions.sh
diff --git a/x230/release.sh b/x230/release.sh
index 30d1bd2..7cb8f72 100755
--- a/x230/release.sh
+++ b/x230/release.sh
@@ -132,7 +132,7 @@ sha256sum ${RELEASE_DIR}/${RELEASE_IMAGE_FILE_2} > "${RELEASE_DIR}/${RELEASE_IMA
 cp ../SOURCE.md "$RELEASE_DIR"
 
 # copy in x230 stuff
-cp -a README.md NEWS util LICENSE* skulls_common.sh \
+cp -a README.md NEWS util LICENSE* functions.sh \
 	x230_before_first_install.sh x230_skulls.sh x230_heads.sh \
 	external_install_bottom.sh external_install_top.sh \
 	upgrade.sh \
diff --git a/x230/upgrade.sh b/x230/upgrade.sh
index 5aeb7d2..1cb7bf4 100755
--- a/x230/upgrade.sh
+++ b/x230/upgrade.sh
@@ -7,7 +7,7 @@ NC='\033[0m'
 
 set -e
 
-. skulls_common.sh
+source functions.sh
 
 usage()
 {
diff --git a/x230/x230_before_first_install.sh b/x230/x230_before_first_install.sh
index d495263..f28194c 100755
--- a/x230/x230_before_first_install.sh
+++ b/x230/x230_before_first_install.sh
@@ -5,7 +5,7 @@ RED='\033[0;31m'
 GREEN='\033[0;32m'
 NC='\033[0m'
 
-. skulls_common.sh
+source functions.sh
 set -e
 
 usage()
diff --git a/x230/x230_heads.sh b/x230/x230_heads.sh
index 64866e4..52894a8 100755
--- a/x230/x230_heads.sh
+++ b/x230/x230_heads.sh
@@ -8,7 +8,7 @@ NC='\033[0m'
 
 set -e
 
-. skulls_common.sh
+source functions.sh
 
 have_input_image=0
 
diff --git a/x230/x230_skulls.sh b/x230/x230_skulls.sh
index d461485..da0b537 100755
--- a/x230/x230_skulls.sh
+++ b/x230/x230_skulls.sh
@@ -8,7 +8,7 @@ NC='\033[0m'
 
 set -e
 
-. skulls_common.sh
+source functions.sh
 
 have_input_image=0