diff --git a/src/v/pandaproxy/probe.h b/src/v/pandaproxy/probe.h
index f5f3455dab24..fb2e7300de0e 100644
--- a/src/v/pandaproxy/probe.h
+++ b/src/v/pandaproxy/probe.h
@@ -52,9 +52,9 @@ class http_status_metric {
     auto auto_measure() { return measurement{this, _hist.auto_measure()}; }
 
     hdr_hist _hist;
-    int64_t _5xx_count;
-    int64_t _4xx_count;
-    int64_t _3xx_count;
+    int64_t _5xx_count{0};
+    int64_t _4xx_count{0};
+    int64_t _3xx_count{0};
 };
 
 class probe {