diff --git a/src/apps/pulse/PulseView.cpp b/src/apps/pulse/PulseView.cpp
index 5a31421aac..b4ebb8d9a6 100644
--- a/src/apps/pulse/PulseView.cpp
+++ b/src/apps/pulse/PulseView.cpp
@@ -62,6 +62,9 @@ PulseView::PulseView(BMessage *message)
 }
 
 void PulseView::Init() {
+	memset(cpu_times, 0, sizeof(double) * kCPUCount);
+	memset(prev_active, 0, sizeof(double) * kCPUCount);
+
 	popupmenu = new BPopUpMenu("PopUpMenu", false, false, B_ITEMS_IN_COLUMN);
 	popupmenu->SetFont(be_plain_font);
 	mode1 = new BMenuItem("", NULL, 0, 0);