diff --git a/plugins/zfs/zfs_stats_ b/plugins/zfs/zfs_stats_
index bef05684..d062c562 100755
--- a/plugins/zfs/zfs_stats_
+++ b/plugins/zfs/zfs_stats_
@@ -108,7 +108,6 @@ efficiency() {
                 echo 'graph_title ZFS ARC Efficiency'
                 echo 'graph_args -u 100'
                 echo 'graph_vlabel %'
-                echo 'graph_category ZFS'
                 echo 'graph_info This graph shows the ARC Efficiency'
 
                 echo 'hits.label Cache Hit Ratio'
@@ -132,7 +131,6 @@ cachehitlist() {
                 echo 'graph_title ZFS ARC Efficiency: Cache hits by cache list'
                 echo 'graph_args -u 100'
                 echo 'graph_vlabel %'
-                echo 'graph_category ZFS'
                 echo 'graph_info This graph shows the ARC Efficiency'
 
                 echo 'cache_list_anon.label Anonymously Used'
@@ -156,7 +154,6 @@ cachehitdtype() {
                 echo 'graph_title ZFS ARC Efficiency: Cache hits by data type'
                 echo 'graph_args -u 100'
                 echo 'graph_vlabel %'
-                echo 'graph_category ZFS'
                 echo 'graph_info This graph shows the ARC Efficiency'
 
                 echo 'data_type_demand_hits.label Demand Data Hit Ratio'
@@ -187,7 +184,6 @@ dmuprefetch() {
                 echo 'graph_title ZFS DMU prefetch stats'
                 echo 'graph_args -u 100'
                 echo 'graph_vlabel %'
-                echo 'graph_category ZFS'
                 echo 'graph_info This graph shows the DMU prefetch stats'
 
 		echo 'hits.label Hit percentage'
@@ -206,7 +202,6 @@ utilization() {
                 echo 'graph_title ZFS ARC Size'
                 echo 'graph_args --base 1024 -l 0 --vertical-label Bytes --upper-limit '$MEMMAX
                 echo 'graph_vlabel Size in MB'
-                echo 'graph_category ZFS'
                 echo 'graph_info This graph shows the ARC Size utilization'
 
                 echo 'max_size.label Maximum Size'