C :: GSL And OpenMP - Getting Random Numbers That Are Out Of Expected Range

I am trying to parallelize some of my code with OpenMP. When I switch to using multiple threads I start getting random numbers that are out of the expected range.

Here is a small example:

Code:
#include <stdio.h>
#include </usr/local/include/gsl/gsl_rng.h>
#include </usr/local/include/gsl/gsl_randist.h>
int main() {
int mySeed=0;
const gsl_rng_type *T;
T = gsl_rng_ranlxs2;
gsl_rng *r_1 ;

[Code] .....

gsl_rng_uniform should only output number in the range [0,1) but with multiple threads it outputs larger number as well.