diff -uNr nagios-nrpe.orig/src/nrpe.c nagios-nrpe/src/nrpe.c
--- nagios-nrpe.orig/src/nrpe.c	2025-08-08 15:17:42.001151893 +0200
+++ nagios-nrpe/src/nrpe.c	2025-08-08 15:17:56.612997804 +0200
@@ -40,11 +40,6 @@
 #include "utils.h"
 #include "acl.h"
 
-#ifdef HAVE_SSL
-# ifdef USE_SSL_DH
-#  include "../include/dh.h"
-# endif
-#endif
 #ifndef HAVE_ASPRINTF
 extern int asprintf(char **ptr, const char *format, ...);
 #endif
@@ -453,9 +448,12 @@
 		}
 
 #ifdef USE_SSL_DH
-		dh = get_dh2048();
-		SSL_CTX_set_tmp_dh(ctx, dh);
-		DH_free(dh);
+		if (!SSL_CTX_set_dh_auto(ctx, 1))
+		{
+			SSL_CTX_free(ctx);
+			logit(LOG_ERR, "Error: Could not set automatic use of DH.");
+			exit(STATE_CRITICAL);
+		}
 #endif
 	}