diff --git a/asn1c/tests/check-src/check64-135.-gen-OER.c b/asn1c/tests/check-src/check64-135.-gen-OER.c
new file mode 100644
index 0000000..5b709ab
--- /dev/null
+++ b/asn1c/tests/check-src/check64-135.-gen-OER.c
@@ -0,0 +1,22 @@
+/*
+ * Verify OER with constrained INTEGER code gen.
+ */
+#undef	NDEBUG
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <string.h>
+#include <assert.h>
+#include <ctype.h>
+#include <errno.h>
+
+#include <T.h>
+
+int main() {
+	T_t t;
+
+    memset(&t, 0, sizeof(t));
+
+	return 0;
+}
+
diff --git a/tests/135-oer-long-OK.asn1 b/tests/135-oer-long-OK.asn1
new file mode 100644
index 0000000..2645bba
--- /dev/null
+++ b/tests/135-oer-long-OK.asn1
@@ -0,0 +1,30 @@
+
+-- OK: Everything is fine
+-- Also see .127 for narrower integer types.
+
+-- iso.org.dod.internet.private.enterprise (1.3.6.1.4.1)
+-- .spelio.software.asn1c.test (9363.1.5.1)
+-- .134
+
+ModuleOERLong
+	{ iso org(3) dod(6) internet (1) private(4) enterprise(1)
+		spelio(9363) software(1) asn1c(5) test(1) 135 }
+	DEFINITIONS AUTOMATIC TAGS ::=
+BEGIN
+
+    -- Supported only on 64-bit platforms.
+    T ::= SEQUENCE {
+        unsigned8           INTEGER (0..255),       -- OER 1 byte
+        unsigned16          INTEGER (0..65535),     -- OER 2 bytes
+        unsigned16stack INTEGER (0..32767)(0..255), --  OER 1 byte
+        unsigned16stack-ext INTEGER (0..32767)(0..255,...), -- OER 2 bytes
+        unsigned33          INTEGER (0..5000000000),    -- OER 8 bytes
+        signed8             INTEGER (-128..127),        -- OER 1 byte
+        signed16            INTEGER (-32768..32767),    -- OER 2 bytes
+        signed16stack       INTEGER (-32768..32767)(-128..127), -- OER 1 byte
+        signed16stack-ext   INTEGER (-32768..32767)(-128..127,...), -- OER 2 b
+        signed32            INTEGER (-2000000000..2000000000), -- OER 4 bytes
+        signed33ext         INTEGER (-4000000000..4000000000,...) -- OER vrble
+    }
+
+END