SSRS failing when parameter value contain SPACE in between

I have designed a SSRS report pointing to SSAS Cube. There are 6 parameters and All parameters contains spaces in its values.

for ex Product parameter contains values like 'SQL server reporting services'. When i execute choosing this value it failes with below message. But if selects a value like 'Access' where there is no space in between..it works fine.

An error occurred during client rendering.
An error has occurred during report processing.
Query execution failed for dataset 'DataSet4'.
Parser: The syntax for 'SQL' is incorrect.

But when same query with same parameters executed in report design mode (query designer mode) it works properly.

Could some one help me to resolve this issue.

Thanks in advance

Chandra