diff --git a/lib/modules/Standards.pmod/PKCS.pmod/CSR.pmod b/lib/modules/Standards.pmod/PKCS.pmod/CSR.pmod
index 6598440c9b472641e21325c7939d494e25e5ecdb..173faf5f286aa3e592423d246bac80adc46e159b 100644
--- a/lib/modules/Standards.pmod/PKCS.pmod/CSR.pmod
+++ b/lib/modules/Standards.pmod/PKCS.pmod/CSR.pmod
@@ -3,6 +3,10 @@
  * Handlig of Certifikate Signing Requests (PKCS-10)
  */
 
+#if __VERSION__ >= 0.6
+import ".";
+#endif /* __VERSION__ >= 0.6 */
+
 import Standards.ASN1.Encode;
 
 class CSR_Attributes
diff --git a/lib/modules/Standards.pmod/PKCS.pmod/Certificate.pmod b/lib/modules/Standards.pmod/PKCS.pmod/Certificate.pmod
index ec21aefb13c7c1fd42f3f795a02387375e76718d..f636155933972e97a912320e0f4e32961744dc34 100644
--- a/lib/modules/Standards.pmod/PKCS.pmod/Certificate.pmod
+++ b/lib/modules/Standards.pmod/PKCS.pmod/Certificate.pmod
@@ -124,6 +124,10 @@ Version ::= INTEGER
 
 */
 
+#if __VERSION__ >= 0.6
+import ".";
+#endif /* __VERSION__ >= 0.6 */
+
 import Standards.ASN1.Encode;
 import Identifiers;
 
diff --git a/lib/modules/Standards.pmod/PKCS.pmod/RSA.pmod b/lib/modules/Standards.pmod/PKCS.pmod/RSA.pmod
index 66fa2a160027f41914296ee53bf0395cdfbc5614..67b25abf6b1ace05168ba82bf3f5c1a0c08e1789 100644
--- a/lib/modules/Standards.pmod/PKCS.pmod/RSA.pmod
+++ b/lib/modules/Standards.pmod/PKCS.pmod/RSA.pmod
@@ -8,6 +8,10 @@
 #define WERROR(x)
 #endif
 
+#if __VERSION__ >= 0.6
+import ".";
+#endif /* __VERSION__ >= 0.6 */
+
 import Standards.ASN1.Encode;
 
 /* Create a DER-coded RSAPrivateKey structure */