diff --git a/include/QF/progs.h b/include/QF/progs.h
index e8b4136dc..55ac37b69 100644
--- a/include/QF/progs.h
+++ b/include/QF/progs.h
@@ -1801,7 +1801,7 @@ extern const char *pr_gametype;
 typedef struct strref_s strref_t;
 
 typedef struct {
-	pr_int_t    staddr;				///< Return statement.
+	pr_uint_t   staddr;				///< Return statement.
 	bfunction_t *func;				///< Calling function.
 	strref_t   *tstr;				///< Linked list of temporary strings.
 } prstack_t;
diff --git a/libs/gamecode/pr_debug.c b/libs/gamecode/pr_debug.c
index 1034c7b95..e4268eef5 100644
--- a/libs/gamecode/pr_debug.c
+++ b/libs/gamecode/pr_debug.c
@@ -1721,7 +1721,7 @@ dump_frame (progs_t *pr, prstack_t *frame)
 		pr_lineno_t *lineno = PR_Find_Lineno (pr, frame->staddr);
 		pr_auxfunction_t *func = PR_Get_Lineno_Func (pr, lineno);
 		pr_uint_t   line = PR_Get_Lineno_Line (pr, lineno);
-		pr_int_t    addr = PR_Get_Lineno_Addr (pr, lineno);
+		pr_uint_t   addr = PR_Get_Lineno_Addr (pr, lineno);
 
 		line += func->source_line;
 		if (addr == frame->staddr) {