diff --git a/src/main/java/com/raoulvdberge/refinedstorage/apiimpl/network/node/NetworkNodeGrid.java b/src/main/java/com/raoulvdberge/refinedstorage/apiimpl/network/node/NetworkNodeGrid.java
index 849370634..4c3ba61a9 100755
--- a/src/main/java/com/raoulvdberge/refinedstorage/apiimpl/network/node/NetworkNodeGrid.java
+++ b/src/main/java/com/raoulvdberge/refinedstorage/apiimpl/network/node/NetworkNodeGrid.java
@@ -535,7 +535,7 @@ public class NetworkNodeGrid extends NetworkNode implements IGrid {
 
     @Override
     public int getTotalTabPages() {
-        return (int) Math.floor((float) tabs.size() / (float) IGrid.TABS_PER_PAGE);
+        return (int) Math.floor((float) Math.max(0, tabs.size() - 1) / (float) IGrid.TABS_PER_PAGE);
     }
 
     @Override
diff --git a/src/main/java/com/raoulvdberge/refinedstorage/tile/grid/WirelessGrid.java b/src/main/java/com/raoulvdberge/refinedstorage/tile/grid/WirelessGrid.java
index 2a59bb362..09fb570f1 100755
--- a/src/main/java/com/raoulvdberge/refinedstorage/tile/grid/WirelessGrid.java
+++ b/src/main/java/com/raoulvdberge/refinedstorage/tile/grid/WirelessGrid.java
@@ -137,7 +137,7 @@ public class WirelessGrid implements IGrid {
 
     @Override
     public int getTotalTabPages() {
-        return (int) Math.floor((float) tabs.size() / (float) IGrid.TABS_PER_PAGE);
+        return (int) Math.floor((float) Math.max(0, tabs.size() - 1) / (float) IGrid.TABS_PER_PAGE);
     }
 
     @Override
diff --git a/src/main/java/com/raoulvdberge/refinedstorage/tile/grid/portable/PortableGrid.java b/src/main/java/com/raoulvdberge/refinedstorage/tile/grid/portable/PortableGrid.java
index ad0f51ae2..a69bbc41d 100644
--- a/src/main/java/com/raoulvdberge/refinedstorage/tile/grid/portable/PortableGrid.java
+++ b/src/main/java/com/raoulvdberge/refinedstorage/tile/grid/portable/PortableGrid.java
@@ -243,7 +243,7 @@ public class PortableGrid implements IGrid, IPortableGrid {
 
     @Override
     public int getTotalTabPages() {
-        return (int) Math.floor((float) tabs.size() / (float) IGrid.TABS_PER_PAGE);
+        return (int) Math.floor((float) Math.max(0, tabs.size() - 1) / (float) IGrid.TABS_PER_PAGE);
     }
 
     @Override
diff --git a/src/main/java/com/raoulvdberge/refinedstorage/tile/grid/portable/TilePortableGrid.java b/src/main/java/com/raoulvdberge/refinedstorage/tile/grid/portable/TilePortableGrid.java
index 52ff4072e..04fd446e5 100644
--- a/src/main/java/com/raoulvdberge/refinedstorage/tile/grid/portable/TilePortableGrid.java
+++ b/src/main/java/com/raoulvdberge/refinedstorage/tile/grid/portable/TilePortableGrid.java
@@ -314,7 +314,7 @@ public class TilePortableGrid extends TileBase implements IGrid, IPortableGrid,
 
     @Override
     public int getTotalTabPages() {
-        return (int) Math.floor((float) tabs.size() / (float) IGrid.TABS_PER_PAGE);
+        return (int) Math.floor((float) Math.max(0, tabs.size() - 1) / (float) IGrid.TABS_PER_PAGE);
     }
 
     @Override