diff --git a/src/bitmessagemain.py b/src/bitmessagemain.py
index 3a99fc19..87fd5934 100644
--- a/src/bitmessagemain.py
+++ b/src/bitmessagemain.py
@@ -517,7 +517,7 @@ class MySimpleXMLRPCRequestHandler(SimpleXMLRPCRequestHandler):
             status, addressVersionNumber, streamNumber, toRipe = decodeAddress(
                 toAddress)
             if status != 'success':
-                logger.warn('API Error 0007: Could not decode address: %s : %s', toAddress, status)
+                logger.warn('API Error 0007: Could not decode address: %s', toAddress + ' : ' + status)
 
                 if status == 'checksumfailed':
                     return 'API Error 0008: Checksum failed for address: ' + toAddress
@@ -533,7 +533,7 @@ class MySimpleXMLRPCRequestHandler(SimpleXMLRPCRequestHandler):
             status, addressVersionNumber, streamNumber, fromRipe = decodeAddress(
                 fromAddress)
             if status != 'success':
-                logger.warn('API Error 0007: Could not decode address: %s : %s', fromAddress, status)
+                logger.warn('API Error 0007: Could not decode address: %s', fromAddress + ' : ' + status)
 
                 if status == 'checksumfailed':
                     return 'API Error 0008: Checksum failed for address: ' + fromAddress
@@ -597,7 +597,7 @@ class MySimpleXMLRPCRequestHandler(SimpleXMLRPCRequestHandler):
             status, addressVersionNumber, streamNumber, fromRipe = decodeAddress(
                 fromAddress)
             if status != 'success':
-                logger.warn('API Error 0007: Could not decode address: %s : %s', fromAddress, status)
+                logger.warn('API Error 0007: Could not decode address: %s', fromAddress + ' : ' + status)
 
                 if status == 'checksumfailed':
                     return 'API Error 0008: Checksum failed for address: ' + fromAddress
@@ -667,7 +667,7 @@ class MySimpleXMLRPCRequestHandler(SimpleXMLRPCRequestHandler):
             status, addressVersionNumber, streamNumber, toRipe = decodeAddress(
                 address)
             if status != 'success':
-                logger.warn('API Error 0007: Could not decode address: %s : %s', address, status)
+                logger.warn('API Error 0007: Could not decode address: %s', address + ' : ' + status)
 
                 if status == 'checksumfailed':
                     return 'API Error 0008: Checksum failed for address: ' + address