diff --git a/ckan-datapusher.sh b/ckan-datapusher.sh
index 0e7abfa..51e5db0 100755
--- a/ckan-datapusher.sh
+++ b/ckan-datapusher.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-SOURCE_DIR=${SOURCE_DIR}/ckan-datapusher
+SOURCE_DIR=$(realpath $(dirname "${0}"))/ckan-datapusher
 
 # Build Docker container
 docker build -t ckan-datapusher ${SOURCE_DIR}
diff --git a/ckan.sh b/ckan.sh
index cc33f69..ac89805 100755
--- a/ckan.sh
+++ b/ckan.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-SOURCE_DIR=${SOURCE_DIR}/ckan
+SOURCE_DIR=$(realpath $(dirname "${0}"))/ckan
 
 # Build Docker container
 docker build -t ckan ${SOURCE_DIR}