diff --git a/hdl/hazard3_core.v b/hdl/hazard3_core.v
index 844b685..c3f4d09 100644
--- a/hdl/hazard3_core.v
+++ b/hdl/hazard3_core.v
@@ -947,7 +947,7 @@ wire m_dphase_in_flight = xm_memop != MEMOP_NONE && xm_memop != MEMOP_AMO;
 wire m_delay_irq_entry = xm_delay_irq_entry_on_ls_stagex ||
 	((xm_sleep_wfi || xm_sleep_block) && !m_sleep_stall_release);
 
-wire m_pwr_allow_sleep;
+wire m_pwr_allow_clkgate;
 wire m_pwr_allow_power_down;
 wire m_pwr_allow_sleep_on_block;
 wire m_wfi_wakeup_req;
@@ -1002,7 +1002,7 @@ hazard3_csr #(
 	.delay_irq_entry            (m_delay_irq_entry),
 	.mepc_in                    (m_exception_return_addr),
 
-	.pwr_allow_sleep            (m_pwr_allow_sleep),
+	.pwr_allow_clkgate          (m_pwr_allow_clkgate),
 	.pwr_allow_power_down       (m_pwr_allow_power_down),
 	.pwr_allow_sleep_on_block   (m_pwr_allow_sleep_on_block),
 	.pwr_wfi_wakeup_req         (m_wfi_wakeup_req),
@@ -1172,7 +1172,7 @@ hazard3_power_ctrl power_ctrl (
 	.pwrup_ack              (pwrup_ack),
 	.clk_en                 (clk_en),
 
-	.allow_sleep            (m_pwr_allow_sleep),
+	.allow_clkgate          (m_pwr_allow_clkgate),
 	.allow_power_down       (m_pwr_allow_power_down),
 	.allow_sleep_on_block   (m_pwr_allow_sleep_on_block),
 
diff --git a/hdl/hazard3_csr.v b/hdl/hazard3_csr.v
index b6a1bed..047ee44 100644
--- a/hdl/hazard3_csr.v
+++ b/hdl/hazard3_csr.v
@@ -88,7 +88,7 @@ module hazard3_csr #(
 	input  wire [XLEN-1:0]     mepc_in,
 
 	// Power control signalling
-	output wire                pwr_allow_sleep,
+	output wire                pwr_allow_clkgate,
 	output wire                pwr_allow_power_down,
 	output wire                pwr_allow_sleep_on_block,
 	output wire                pwr_wfi_wakeup_req,
@@ -404,7 +404,7 @@ end
 
 assign pwr_allow_sleep_on_block = msleep_sleeponblock;
 assign pwr_allow_power_down = msleep_powerdown;
-assign pwr_allow_sleep = msleep_deepsleep;
+assign pwr_allow_clkgate = msleep_deepsleep;
 
 // ----------------------------------------------------------------------------
 // Counters
diff --git a/hdl/hazard3_power_ctrl.v b/hdl/hazard3_power_ctrl.v
index bcf780c..8ac408e 100644
--- a/hdl/hazard3_power_ctrl.v
+++ b/hdl/hazard3_power_ctrl.v
@@ -28,7 +28,7 @@ module hazard3_power_ctrl #(
 	output reg               clk_en,
 
 	// Power state controls from CSRs
-	input  wire              allow_sleep,
+	input  wire              allow_clkgate,
 	input  wire              allow_power_down,
 	input  wire              allow_sleep_on_block,
 
@@ -82,10 +82,10 @@ always @ (posedge clk_always_on or negedge rst_n) begin
 			end else if (active_wake_req) begin
 				// Skip deep sleep if it would immediately fall through.
 				stall_release <= 1'b1;
-			end else if ((allow_power_down || allow_sleep) && (sleeping_on_wfi || allow_sleep_on_block)) begin
+			end else if ((allow_power_down || allow_clkgate) && (sleeping_on_wfi || allow_sleep_on_block)) begin
 				if (frontend_pwrdown_ok) begin
 					pwrup_req <= !allow_power_down;
-					clk_en <= !allow_sleep;
+					clk_en <= !allow_clkgate;
 					state <= allow_power_down ? S_ENTER_ASLEEP : S_ASLEEP;
 				end else begin
 					// Stay awake until it is safe to power down (i.e. until our
@@ -142,7 +142,7 @@ always @ (posedge clk_always_on or negedge rst_n) begin
 			assert(!past_stall_release);
 		end
 		if (state == S_ASLEEP) begin
-			assert(allow_power_down || allow_sleep);
+			assert(allow_power_down || allow_clkgate);
 		end
 	end
 end