diff --git a/src/main/java/li/cil/oc2/common/blockentity/RedstoneInterfaceBlockEntity.java b/src/main/java/li/cil/oc2/common/blockentity/RedstoneInterfaceBlockEntity.java
index c6a9df35..5aa83434 100644
--- a/src/main/java/li/cil/oc2/common/blockentity/RedstoneInterfaceBlockEntity.java
+++ b/src/main/java/li/cil/oc2/common/blockentity/RedstoneInterfaceBlockEntity.java
@@ -122,7 +122,7 @@ public final class RedstoneInterfaceBlockEntity extends BlockEntity implements N
             .description("Get the current redstone level received on the specified side. " +
                 "Note that if the current output level on the specified side is not " +
                 "zero, this will affect the measured level.\n" +
-                "Sides may be specified by name or zero-based index. Please note that" +
+                "Sides may be specified by name or zero-based index. Please note that " +
                 "the side depends on the orientation of the device.")
             .returnValueDescription("the current received level on the specified side.")
             .parameterDescription(SIDE, "the side to read the input level from.");
@@ -130,13 +130,13 @@ public final class RedstoneInterfaceBlockEntity extends BlockEntity implements N
         visitor.visitCallback(GET_REDSTONE_OUTPUT)
             .description("Get the current redstone level transmitted on the specified side. " +
                 "This will return the value last set via setRedstoneOutput().\n" +
-                "Sides may be specified by name or zero-based index. Please note that" +
+                "Sides may be specified by name or zero-based index. Please note that " +
                 "the side depends on the orientation of the device.")
             .returnValueDescription("the current transmitted level on the specified side.")
             .parameterDescription(SIDE, "the side to read the output level from.");
         visitor.visitCallback(SET_REDSTONE_OUTPUT)
             .description("Set the new redstone level transmitted on the specified side.\n" +
-                "Sides may be specified by name or zero-based index. Please note that" +
+                "Sides may be specified by name or zero-based index. Please note that " +
                 "the side depends on the orientation of the device.")
             .parameterDescription(SIDE, "the side to write the output level to.")
             .parameterDescription(VALUE, "the output level to set, will be clamped to [0, 15].");
diff --git a/src/main/java/li/cil/oc2/common/bus/device/item/RedstoneInterfaceCardItemDevice.java b/src/main/java/li/cil/oc2/common/bus/device/item/RedstoneInterfaceCardItemDevice.java
index 254352cf..d47700dd 100644
--- a/src/main/java/li/cil/oc2/common/bus/device/item/RedstoneInterfaceCardItemDevice.java
+++ b/src/main/java/li/cil/oc2/common/bus/device/item/RedstoneInterfaceCardItemDevice.java
@@ -131,7 +131,7 @@ public final class RedstoneInterfaceCardItemDevice extends AbstractItemRPCDevice
             .description("Get the current redstone level received on the specified side. " +
                 "Note that if the current output level on the specified side is not " +
                 "zero, this will affect the measured level.\n" +
-                "Sides may be specified by name or zero-based index. Please note that" +
+                "Sides may be specified by name or zero-based index. Please note that " +
                 "the side depends on the orientation of the device's container.")
             .returnValueDescription("the current received level on the specified side.")
             .parameterDescription(SIDE, "the side to read the input level from.");
@@ -139,13 +139,13 @@ public final class RedstoneInterfaceCardItemDevice extends AbstractItemRPCDevice
         visitor.visitCallback(GET_REDSTONE_OUTPUT)
             .description("Get the current redstone level transmitted on the specified side. " +
                 "This will return the value last set via setRedstoneOutput().\n" +
-                "Sides may be specified by name or zero-based index. Please note that" +
+                "Sides may be specified by name or zero-based index. Please note that " +
                 "the side depends on the orientation of the device's container.")
             .returnValueDescription("the current transmitted level on the specified side.")
             .parameterDescription(SIDE, "the side to read the output level from.");
         visitor.visitCallback(SET_REDSTONE_OUTPUT)
             .description("Set the new redstone level transmitted on the specified side.\n" +
-                "Sides may be specified by name or zero-based index. Please note that" +
+                "Sides may be specified by name or zero-based index. Please note that " +
                 "the side depends on the orientation of the device's container.")
             .parameterDescription(SIDE, "the side to write the output level to.")
             .parameterDescription(VALUE, "the output level to set, will be clamped to [0, 15].");