diff --git a/build-scripts/androidbuild.sh b/build-scripts/androidbuild.sh
index ec71cbcad..1a107e27d 100755
--- a/build-scripts/androidbuild.sh
+++ b/build-scripts/androidbuild.sh
@@ -81,7 +81,7 @@ do
 done
 
 # Uppercase the first char in the activity class name because it's Java
-ACTIVITY="${folder^}Activity"
+ACTIVITY="$(echo $folder | awk '{$1=toupper(substr($1,0,1))substr($1,2)}1')Activity"
 sed -i -e "s|\"SDLActivity\"|\"$ACTIVITY\"|g" $BUILDPATH/app/src/main/AndroidManifest.xml
 
 # Fill in a default Activity