diff --git a/windows/jack_netadapter.cbp b/windows/jack_netadapter.cbp
index 4ad9e1cf..ae4df525 100644
--- a/windows/jack_netadapter.cbp
+++ b/windows/jack_netadapter.cbp
@@ -149,6 +149,7 @@
 			<Add directory="..\windows" />
 			<Add directory="..\common\jack" />
 			<Add directory="..\common" />
+			<Add directory="..\compat\alloca" />
 		</Compiler>
 		<Linker>
 			<Add option="-enable-auto-import" />
diff --git a/windows/jack_netonedriver.cbp b/windows/jack_netonedriver.cbp
index 039ab034..2de7fec3 100644
--- a/windows/jack_netonedriver.cbp
+++ b/windows/jack_netonedriver.cbp
@@ -140,6 +140,7 @@
 		</Build>
 		<Compiler>
 			<Add option="-Wall" />
+			<Add directory="..\compat\alloca" />
 		</Compiler>
 		<Linker>
 			<Add option="-enable-auto-import" />
diff --git a/windows/jack_netsource.cbp b/windows/jack_netsource.cbp
index 7903d94c..c297be66 100644
--- a/windows/jack_netsource.cbp
+++ b/windows/jack_netsource.cbp
@@ -141,6 +141,7 @@
 			<Add directory="..\windows" />
 			<Add directory="..\common\jack" />
 			<Add directory="..\common" />
+			<Add directory="..\compat\alloca" />
 		</Compiler>
 		<Linker>
 			<Add library="kernel32" />