diff --git a/plugins/sudoers/regress/parser/check_digest.c b/plugins/sudoers/regress/parser/check_digest.c
index 47848f89d..3dd329243 100644
--- a/plugins/sudoers/regress/parser/check_digest.c
+++ b/plugins/sudoers/regress/parser/check_digest.c
@@ -113,6 +113,7 @@ main(int argc, char *argv[])
 		    putchar(hex[digest[j] & 0x0f]);
 		}
 		putchar('\n');
+		free(digest);
 	    }
 	}
 
@@ -127,6 +128,7 @@ main(int argc, char *argv[])
 		putchar(hex[digest[j] & 0x0f]);
 	    }
 	    putchar('\n');
+	    free(digest);
 	}
     }