diff --git a/ChangeLog b/ChangeLog
index 1774a783..34ecb50c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -21836,3 +21836,5 @@
 	* Cleaned up compile warnings in rdrepld(8).
 2021-06-02 Fred Gleason <fredg@paravelsystems.com>
 	* Cleaned up compile warnings in ripcd(8).
+2021-06-02 Fred Gleason <fredg@paravelsystems.com>
+	* Cleaned up compile warnings in the 'test_pam' harness.
diff --git a/tests/test_pam.cpp b/tests/test_pam.cpp
index f48ee387..2182d530 100644
--- a/tests/test_pam.cpp
+++ b/tests/test_pam.cpp
@@ -51,7 +51,9 @@ int ConversationResponseCallback(int num_msg,const struct pam_message **msg,
     case PAM_PROMPT_ECHO_ON:
       printf("%s ",msg[i]->msg);
       fflush(NULL);
-      fgets(resp[i]->resp,256,stdin);
+      if(fgets(resp[i]->resp,256,stdin)==NULL) {
+	fprintf(stderr,"failed to read prompt!\n");
+      }
       resp[i]->resp[strlen(resp[i]->resp)-1]=0;
       resp[i]->resp_retcode=0;
       break;