diff --git a/httpcore5/src/main/java/org/apache/hc/core5/http/impl/bootstrap/RequestListener.java b/httpcore5/src/main/java/org/apache/hc/core5/http/impl/bootstrap/RequestListener.java
index 1c58748a94..201adb57c6 100644
--- a/httpcore5/src/main/java/org/apache/hc/core5/http/impl/bootstrap/RequestListener.java
+++ b/httpcore5/src/main/java/org/apache/hc/core5/http/impl/bootstrap/RequestListener.java
@@ -135,7 +135,7 @@ public void run() {
                     this.executorService.execute(worker);
                 } catch (final IOException | RuntimeException ex) {
                     Closer.closeQuietly(socket);
-                    throw ex;
+                    this.exceptionListener.onError(ex);
                 }
             }
         } catch (final Exception ex) {