diff --git a/scripts/build/linux.sh b/scripts/build/linux.sh
index 0f0c1f76..65651a49 100755
--- a/scripts/build/linux.sh
+++ b/scripts/build/linux.sh
@@ -32,11 +32,6 @@ if ! command -v bower 2>/dev/null; then
   exit 1
 fi
 
-if ! command -v upx 2>/dev/null; then
-  echo "Dependency missing: upx" 1>&2
-  exit 1
-fi
-
 if ! command -v python 2>/dev/null; then
   echo "Dependency missing: python" 1>&2
   exit 1
@@ -53,6 +48,13 @@ if [ "$COMMAND" != "install" ] && [ "$COMMAND" != "package" ] && [ "$COMMAND" !=
   exit 1
 fi
 
+if [ "$COMMAND" == "appimage" ] || [ "$COMMAND" == "all" ]; then
+  if ! command -v upx 2>/dev/null; then
+    echo "Dependency missing: upx" 1>&2
+    exit 1
+  fi
+fi
+
 ARCH=$2
 if [ "$ARCH" != "x64" ] && [ "$ARCH" != "x86" ]; then
   echo "Unknown architecture: $ARCH" 1>&2
@@ -102,11 +104,6 @@ function package_x86 {
 
   mv $output_package/Etcher $output_package/etcher
   chmod a+x $output_package/*.so*
-
-  # UPX fails for some reason with some other so libraries
-  # other than libnode.so in the x86 build
-  upx -9 $output_package/etcher $output_package/libnode.so
-
 }
 
 function package_x64 {
@@ -126,7 +123,6 @@ function package_x64 {
 
   mv $output_package/Etcher $output_package/etcher
   chmod a+x $output_package/*.so*
-  upx -9 $output_package/etcher $output_package/*.so*
 }
 
 function app_dir_create {
@@ -177,5 +173,15 @@ if [ "$COMMAND" == "package" ] || [ "$COMMAND" == "all" ]; then
 fi
 
 if [ "$COMMAND" == "appimage" ] || [ "$COMMAND" == "all" ]; then
+  if [ "$ARCH" == "x86" ]; then
+    # UPX fails for some reason with some other so libraries
+    # other than libnode.so in the x86 build
+    upx -9 $output_package/etcher $output_package/libnode.so
+  fi
+
+  if [ "$ARCH" == "x64" ]; then
+    upx -9 $output_package/etcher $output_package/*.so*
+  fi
+
   installer etcher-release/Etcher-linux-$ARCH $ARCH etcher-release/installers
 fi