diff --git a/travis/build.sh b/travis/build.sh
index 1353fe4..67d937f 100755
--- a/travis/build.sh
+++ b/travis/build.sh
@@ -2,7 +2,7 @@
 set -e
 
 # ====== Setup environment variables
-./travis/setup_variables.sh
+source ./travis/setup_variables.sh
 
 # ====== Build Td
 cd $TD_BUILD_DIR
diff --git a/travis/build_success.sh b/travis/build_success.sh
index 5fcd42f..faa0deb 100755
--- a/travis/build_success.sh
+++ b/travis/build_success.sh
@@ -2,7 +2,7 @@
 set -e
 
 # ====== Setup environment variables
-./travis/setup_variables.sh
+source ./travis/setup_variables.sh
 
 # ====== Copy build output
 if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then
diff --git a/travis/install_dependencies.sh b/travis/install_dependencies.sh
index c2be808..99258ee 100755
--- a/travis/install_dependencies.sh
+++ b/travis/install_dependencies.sh
@@ -2,7 +2,7 @@
 set -e
 
 # ====== Setup environment variables
-./travis/setup_variables.sh
+source ./travis/setup_variables.sh
 
 # ====== Environment cleanup
 [ -f $JAVA_SRC_DIR/it/tdlight/tdnatives/TdApi.java ] && rm $JAVA_SRC_DIR/it/tdlight/tdnatives/TdApi.java