diff --git a/runprebuild.sh b/runprebuild.sh
index 3900ea6004..5671b82db9 100755
--- a/runprebuild.sh
+++ b/runprebuild.sh
@@ -1,4 +1,4 @@
 #!/bin/sh
 
-./bin/Prebuild.exe /target nant
-./bin/Prebuild.exe /target vs2005
+mono bin/Prebuild.exe /target nant
+mono bin/Prebuild.exe /target vs2005