diff --git a/libs/gamecode/pr_load.c b/libs/gamecode/pr_load.c
index 2b6e9d9ff..efa347f4b 100644
--- a/libs/gamecode/pr_load.c
+++ b/libs/gamecode/pr_load.c
@@ -330,6 +330,12 @@ PR_LoadProgsFile (progs_t *pr, QFile *file, int size)
 			def->type_encoding = xdef->type;
 		}
 	}
+	pr->pr_trace = 0;
+	pr->pr_trace_depth = 0;
+	pr->pr_xfunction = 0;
+	pr->pr_xstatement = 0;
+	pr->pr_depth = 0;
+	pr->localstack_used = 0;
 }
 
 VISIBLE void