Index: uspace/app/trace/ipcp.c
===================================================================
--- uspace/app/trace/ipcp.c	(revision 94e152aec063e7f1ace9c768fdc0c53ad9125015)
+++ uspace/app/trace/ipcp.c	(revision 2e3355ac02c28ade6ed5fa69cd4c232cd4580366)
@@ -288,5 +288,5 @@
 		oper = pcall->oper;
 
-		if (oper != NULL && oper->rv_type != V_VOID || oper->respc > 0) {
+		if (oper != NULL && (oper->rv_type != V_VOID || oper->respc > 0)) {
 			printf("->");