diff --git a/Systems/hydraulics.xml b/Systems/hydraulics.xml
index b9f7b95c..4484c7f5 100644
--- a/Systems/hydraulics.xml
+++ b/Systems/hydraulics.xml
@@ -39,7 +39,16 @@
 					</equals>
 				</and>
 			</condition>
-			<property>/surface-positions/speedbrake-pos-norm</property>
+			<expression>
+				<sum>
+					<property>/surface-positions/speedbrake-pos-norm</property>
+					<table>
+						<property>/controls/flight/roll-fbw</property> 
+						<entry><ind>0.2</ind><dep>   0</dep></entry>
+						<entry><ind>1.0</ind><dep>-1.0</dep></entry>
+					</table>
+				</sum>
+			</expression>
 			<scale>-0.5</scale>
 		</input>
 		<input>
@@ -128,7 +137,16 @@
 					</equals>
 				</and>
 			</condition>
-			<property>/surface-positions/speedbrake-pos-norm</property>
+			<expression>
+				<sum>
+					<property>/surface-positions/speedbrake-pos-norm</property>
+					<table>
+						<property>/controls/flight/roll-fbw</property> 
+						<entry><ind>-0.2</ind><dep>   0</dep></entry>
+						<entry><ind>-1.0</ind><dep>-1.0</dep></entry>
+					</table>
+				</sum>
+			</expression>
 			<scale>0.5</scale>
 		</input>
 		<input>
@@ -229,7 +247,7 @@
 				<sum>
 					<property>/surface-positions/speedbrake-pos-norm</property>
 					<table>
-						<property>/controls/flight/spoiler-left-fbw-cmd</property> 
+						<property>/controls/flight/roll-fbw</property> 
 						<entry><ind>0.2</ind><dep>   0</dep></entry>
 						<entry><ind>1.0</ind><dep>-0.5</dep></entry>
 					</table>
@@ -340,8 +358,8 @@
 				<sum>
 					<property>/surface-positions/speedbrake-pos-norm</property>
 					<table>
-						<property>/controls/flight/spoiler-right-fbw-cmd</property> 
-						<entry><ind> 0.2</ind><dep>   0</dep></entry>
+						<property>/controls/flight/roll-fbw</property> 
+						<entry><ind>-0.2</ind><dep>   0</dep></entry>
 						<entry><ind>-1.0</ind><dep>-0.5</dep></entry>
 					</table>
 				</sum>