diff --git a/functions/fn_insfix b/functions/fn_insfix
index 85d695f57..6ed264ae2 100644
--- a/functions/fn_insfix
+++ b/functions/fn_insfix
@@ -6,4 +6,13 @@
 
 # Description: Resolves ./srcds_linux: error while loading shared libraries: libtier0.so: cannot open shared object file: No such file or directory
 
-export LD_LIBRARY_PATH=:${filesdir}:${filesdir}/bin:{$LD_LIBRARY_PATH}
\ No newline at end of file
+export LD_LIBRARY_PATH=:${filesdir}:${filesdir}/bin:{$LD_LIBRARY_PATH}
+
+# fix for issue #529 - gamemode not passed to debug or start
+
+if [ "${getopt}" == "debug" ]; then
+        defaultmap="\"${defaultmap}\""
+else
+        defaultmap="\\\"${defaultmap}\\\""
+fi
+fn_parms