diff --git a/libs/rs/java/Fountain/res/raw/fountain.c b/libs/rs/java/Fountain/res/raw/fountain.c
index c9408d6afe9bc..8b473abb73601 100644
--- a/libs/rs/java/Fountain/res/raw/fountain.c
+++ b/libs/rs/java/Fountain/res/raw/fountain.c
@@ -1,6 +1,6 @@
 // Fountain test script
 
-main(con, ft, launchID) {
+int main(void* con, int ft, int launchID) {
     int count, touch, x, y, rate, maxLife, lifeShift;
     int life;
     int ct, ct2;