Incorrect reporting of memory installed on system by "free"?

debian:~# cat /proc/meminfo
MemTotal:      2063496 kB
MemFree:         30268 kB
Buffers:        396792 kB
Cached:         744344 kB
SwapCached:      29612 kB
Active:         975684 kB
Inactive:       765796 kB
SwapTotal:     3903752 kB
SwapFree:      3845308 kB
Dirty:             152 kB
Writeback:           0 kB
AnonPages:      594968 kB
Mapped:          86052 kB
Slab:           233896 kB
SReclaimable:   218740 kB
SUnreclaim:      15156 kB
PageTables:      20944 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
WritebackTmp:        0 kB
CommitLimit:   4935500 kB
Committed_AS: 1117064 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    178456 kB
VmallocChunk: 34359559163 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
HugePages_Surp:      0
Hugepagesize:     2048 kB

debian:~# free -k
             total       used       free     shared    buffers     cached
Mem:       2063496    2033428      30068          0     396828     744344
-/+ buffers/cache:     892256    1171240
Swap:      3903752      58444    3845308

debian:~# free -m
             total       used       free     shared    buffers     cached
Mem:          2015       1985         29          0        387        726
-/+ buffers/cache:        871       1143
Swap:         3812         57       3755

So far everything looks good. However when I try to report the memory in GBs, I get:

debian:~# free -g
             total       used       free     shared    buffers     cached
Mem:             1          1          0          0          0          0
-/+ buffers/cache:          0          1
Swap:            3          0          3

It just shows that there is just 1 GB of memory installed in total. Am I missing something? Should I file a bug report?

Thanks