diff --git a/abuild-keygen.in b/abuild-keygen.in
index 0d061bd..b474309 100644
--- a/abuild-keygen.in
+++ b/abuild-keygen.in
@@ -7,7 +7,7 @@
 #
 
 program_version=@VERSION@
-sharedir=@sharedir@
+sharedir=${ABUILD_SHAREDIR:-@sharedir@}
 
 if ! [ -f "$sharedir/functions.sh" ]; then
 	echo "$sharedir/functions.sh: not found" >&2
diff --git a/abuild-sign.in b/abuild-sign.in
index eb345b3..474d9dd 100644
--- a/abuild-sign.in
+++ b/abuild-sign.in
@@ -7,7 +7,7 @@
 #
 
 program_version=@VERSION@
-sharedir=@sharedir@
+sharedir=${ABUILD_SHAREDIR:-@sharedir@}
 
 if ! [ -f "$sharedir/functions.sh" ]; then
 	echo "$sharedir/functions.sh: not found" >&2
diff --git a/abuild.in b/abuild.in
index 57610e1..729a400 100644
--- a/abuild.in
+++ b/abuild.in
@@ -8,7 +8,7 @@
 #
 
 program_version=@VERSION@
-sharedir=@sharedir@
+sharedir=${ABUILD_SHAREDIR:-@sharedir@}
 
 abuild_path=$(readlink -f $0)
 git=$(command -v git) || git=true
diff --git a/abump.in b/abump.in
index 3ddf259..5f14582 100644
--- a/abump.in
+++ b/abump.in
@@ -7,7 +7,7 @@
 #
 
 program_version=@VERSION@
-sharedir=@sharedir@
+sharedir=${ABUILD_SHAREDIR:-@sharedir@}
 
 if ! [ -f "$sharedir/functions.sh" ]; then
 	echo "$sharedir/functions.sh: not found" >&2
diff --git a/apkgrel.in b/apkgrel.in
index 448a93c..783a218 100644
--- a/apkgrel.in
+++ b/apkgrel.in
@@ -7,7 +7,7 @@
 #
 
 program_version=@VERSION@
-sharedir=@sharedir@
+sharedir=${ABUILD_SHAREDIR:-@sharedir@}
 
 if ! [ -f "$sharedir/functions.sh" ]; then
 	echo "$sharedir/functions.sh: not found" >&2
diff --git a/buildlab.in b/buildlab.in
index 19d5be1..0b4da5d 100644
--- a/buildlab.in
+++ b/buildlab.in
@@ -3,7 +3,7 @@
 program_version=@VERSION@
 sysconfdir=@sysconfdir@
 abuildrepo=/var/lib/buildlab/result
-sharedir=@sharedir@
+sharedir=${ABUILD_SHAREDIR:-@sharedir@}
 
 BUILD_BASE="build-base"
 SUDO=${SUDO:-"sudo"}
diff --git a/checkapk.in b/checkapk.in
index 1761bb7..f15a079 100644
--- a/checkapk.in
+++ b/checkapk.in
@@ -7,7 +7,7 @@
 #
 
 program_version=@VERSION@
-sharedir=@sharedir@
+sharedir=${ABUILD_SHAREDIR:-@sharedir@}
 
 if ! [ -f "$sharedir/functions.sh" ]; then
 	echo "$sharedir/functions.sh: not found" >&2
diff --git a/newapkbuild.in b/newapkbuild.in
index f50276b..5816578 100644
--- a/newapkbuild.in
+++ b/newapkbuild.in
@@ -7,7 +7,7 @@
 #
 
 program_version=@VERSION@
-sharedir=@sharedir@
+sharedir=${ABUILD_SHAREDIR:-@sharedir@}
 
 if ! [ -f "$sharedir/functions.sh" ]; then
 	echo "$sharedir/functions.sh: not found" >&2
diff --git a/tests/abuild.bats b/tests/abuild.bats
index 159762d..c3e19ce 100644
--- a/tests/abuild.bats
+++ b/tests/abuild.bats
@@ -1,5 +1,6 @@
 setup() {
 	export ABUILD=../abuild
+	export ABUILD_SHAREDIR=$PWD/..
 }
 
 @test "help text" {