diff --git a/test/fast/Aliases/setup b/test/fast/Aliases/setup
index 7055a4d..9b82259 100755
--- a/test/fast/Aliases/setup
+++ b/test/fast/Aliases/setup
@@ -1,5 +1,7 @@
 #!/bin/sh
 
+export NVM_DIR="$(cd ../../.. && pwd)"
+
 \. ../../../nvm.sh
 \. ../../common.sh
 
diff --git a/test/fast/Listing versions/Running 'nvm ls' should not show a trailing slash b/test/fast/Listing versions/Running 'nvm ls' should not show a trailing slash
index 5173870..e3dbd5b 100755
--- a/test/fast/Listing versions/Running 'nvm ls' should not show a trailing slash	
+++ b/test/fast/Listing versions/Running 'nvm ls' should not show a trailing slash	
@@ -1,5 +1,7 @@
 #!/bin/zsh
 
+export NVM_DIR="$(cd ../../.. && pwd)"
+
 \. ../../../nvm.sh
 \. ../../common.sh
 
diff --git a/test/fast/Running 'nvm alias' should create a file in the alias directory b/test/fast/Running 'nvm alias' should create a file in the alias directory
index 1ff49f5..c061a57 100755
--- a/test/fast/Running 'nvm alias' should create a file in the alias directory	
+++ b/test/fast/Running 'nvm alias' should create a file in the alias directory	
@@ -2,6 +2,8 @@
 
 set -ex
 
+export NVM_DIR="$(cd ../.. && pwd)"
+
 \. ../../nvm.sh
 
 nvm alias test v0.1.2
diff --git a/test/fast/Running 'nvm current' should display current nvm environment b/test/fast/Running 'nvm current' should display current nvm environment
index 1d4d19b..b9f1304 100755
--- a/test/fast/Running 'nvm current' should display current nvm environment	
+++ b/test/fast/Running 'nvm current' should display current nvm environment	
@@ -4,6 +4,8 @@ set -ex
 
 die () { echo "$@" ; exit 1; }
 
+export NVM_DIR="$(cd ../.. && pwd)"
+
 \. ../../nvm.sh
 
 nvm deactivate 2>&1
diff --git a/test/fast/Running 'nvm deactivate' should unset the nvm environment variables b/test/fast/Running 'nvm deactivate' should unset the nvm environment variables
index 5cb5594..b631597 100755
--- a/test/fast/Running 'nvm deactivate' should unset the nvm environment variables	
+++ b/test/fast/Running 'nvm deactivate' should unset the nvm environment variables	
@@ -4,6 +4,8 @@ set -ex
 
 die () { echo "$@" ; exit 1; }
 
+export NVM_DIR="$(cd ../.. && pwd)"
+
 \. ../../nvm.sh
 \. ../common.sh
 
diff --git a/test/fast/Running 'nvm install' with '--reinstall-packages-from' requires a valid version b/test/fast/Running 'nvm install' with '--reinstall-packages-from' requires a valid version
index 41016da..329fe2b 100755
--- a/test/fast/Running 'nvm install' with '--reinstall-packages-from' requires a valid version	
+++ b/test/fast/Running 'nvm install' with '--reinstall-packages-from' requires a valid version	
@@ -7,6 +7,8 @@ cleanup () {
   rm -rf "${NVM_DIR}/v0.10.4"
 }
 
+export NVM_DIR="$(cd ../.. && pwd)"
+
 \. ../../nvm.sh
 \. ../common.sh
 
diff --git a/test/fast/Running 'nvm install' with an invalid version fails nicely b/test/fast/Running 'nvm install' with an invalid version fails nicely
index 6b28d6d..5bbea41 100755
--- a/test/fast/Running 'nvm install' with an invalid version fails nicely	
+++ b/test/fast/Running 'nvm install' with an invalid version fails nicely	
@@ -4,6 +4,8 @@ set -ex
 
 die () { echo "$@" ; exit 1; }
 
+export NVM_DIR="$(cd ../.. && pwd)"
+
 \. ../../nvm.sh
 
 set +ex # needed for stderr