diff --git a/.travis.yml b/.travis.yml
index affb570a..44ccbade 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -18,8 +18,6 @@ jobs:
       cache: ccache
       os: linux
       dist: xenial
-      env:
-        - ARCH=i686
       addons:
         apt:
           packages:
@@ -36,17 +34,15 @@ jobs:
         - sh scripts/travis_common_deps.sh
         - sh scripts/travis_${TRAVIS_OS_NAME}_deps.sh
       script:
-        - sh scripts/build_${TRAVIS_OS_NAME}_engine.sh
+        - sh scripts/build_${TRAVIS_OS_NAME}_engine.sh i686
       after_script:
         - ccache --show-stats
         - sh scripts/continious_upload.sh Xash3DFWGS-${ARCH}.AppImage
-	- # ...
-	  name: "Build for Linux amd64"
+    - # ...
+      name: "Build for Linux amd64"
       cache: ccache
       os: linux
       dist: xenial
-      env:
-        - ARCH=amd64
       addons:
         apt:
           packages:
@@ -61,7 +57,7 @@ jobs:
         - sh scripts/travis_common_deps.sh
         - sh scripts/travis_${TRAVIS_OS_NAME}_deps.sh
       script:
-        - sh scripts/build_${TRAVIS_OS_NAME}_engine.sh
+        - sh scripts/build_${TRAVIS_OS_NAME}_engine.sh amd64
       after_script:
         - ccache --show-stats
         - sh scripts/continious_upload.sh Xash3DFWGS-${ARCH}.AppImage
diff --git a/scripts/build_linux_engine.sh b/scripts/build_linux_engine.sh
index b9ed6b98..0d4c7f05 100755
--- a/scripts/build_linux_engine.sh
+++ b/scripts/build_linux_engine.sh
@@ -2,9 +2,7 @@
 
 . scripts/lib.sh
 
-if [ ! $ARCH ]; then
-	ARCH=i686
-fi
+ARCH=$1
 
 # set up ccache
 export CC="ccache gcc"
@@ -17,7 +15,7 @@ APPDIR=$APP-$ARCH.AppDir
 build_sdl2()
 {
 	cd $TRAVIS_BUILD_DIR/SDL2_src
-	if [ $ARCH == "i686" ]; then # yes, it isn't good to pass flags as CC, but I don't want to clear CFLAGS after building SDL2
+	if [ "$ARCH" == "i686" ]; then # yes, it isn't good to pass flags as CC, but I don't want to clear CFLAGS after building SDL2
 		export CFLAGS="-msse2 -march=i686 -m32 -ggdb -O2"
 	fi
 	./configure --disable-render --disable-haptic --disable-power --disable-filesystem \
@@ -38,7 +36,7 @@ build_engine()
 	cd $TRAVIS_BUILD_DIR
 
 	WAF_CONFIGURE_FLAGS="-s SDL2_linux -T release --enable-stb --prefix=$APPDIR --win-style-install"
-	if [ $ARCH == "amd64" ]; then # we need enabling 64-bit target only on Intel-compatible CPUs
+	if [ "$ARCH" == "amd64" ]; then # we need enabling 64-bit target only on Intel-compatible CPUs
 		WAF_CONFIGURE_FLAGS="$WAF_CONFIGURE_FLAGS -8"
 	fi
 	./waf configure $WAF_CONFIGURE_FLAGS || die
@@ -55,7 +53,7 @@ build_appimage()
 	python3 scripts/makepak.py xash-extras/ $APPDIR/extras.pak
 
 	cp SDL2_linux/lib/libSDL2-2.0.so.0 $APPDIR/
-	if [ $ARCH == "i686" ]; then
+	if [ "$ARCH" == "i686" ]; then
 		cp vgui-dev/lib/vgui.so $APPDIR/
 	fi