diff --git a/image-opensim/Dockerfile-opensim b/image-opensim/Dockerfile-opensim
index 53247ee..5f3b5d4 100644
--- a/image-opensim/Dockerfile-opensim
+++ b/image-opensim/Dockerfile-opensim
@@ -67,7 +67,7 @@ RUN cd $OPENSIMDIR \
 
 # Build OpenSimulator
 RUN cd $OPENSIMDIR \
-    && chmod +x runprebuild48.sh \
+    && chmod +x runprebuild.sh \
     && ./runprebuild.sh \
     && dotnet build --configuration Release OpenSim.sln