diff --git a/kernel/branches/net/drivers/RTL8139.asm b/kernel/branches/net/drivers/RTL8139.asm
index 3e8a13036e..6791b948bb 100644
--- a/kernel/branches/net/drivers/RTL8139.asm
+++ b/kernel/branches/net/drivers/RTL8139.asm
@@ -302,7 +302,7 @@ align 4
 proc service_proc stdcall, ioctl:dword
 
 	mov	edx, [ioctl]
-	mov	eax, [ebx+IOCTL.io_code]
+	mov	eax, [edx+IOCTL.io_code]
 
 ;------------------------------------------------------
 
diff --git a/kernel/branches/net/drivers/pcnet32.asm b/kernel/branches/net/drivers/pcnet32.asm
index e881af01c5..840a568e10 100644
--- a/kernel/branches/net/drivers/pcnet32.asm
+++ b/kernel/branches/net/drivers/pcnet32.asm
@@ -470,7 +470,7 @@ align 4
 proc service_proc stdcall, ioctl:dword
 
 	mov	edx, [ioctl]
-	mov	eax, [ebx+IOCTL.io_code]
+	mov	eax, [edx+IOCTL.io_code]
 
 ;------------------------------------------------------
 
diff --git a/kernel/branches/net/drivers/sis900.asm b/kernel/branches/net/drivers/sis900.asm
index 5e1af8cea5..b2b4beaa9b 100644
--- a/kernel/branches/net/drivers/sis900.asm
+++ b/kernel/branches/net/drivers/sis900.asm
@@ -133,7 +133,7 @@ service_proc:
 ;       pointer to IOCTL structure.
 	mov	edx, [esp+4]	; edx -> IOCTL
 ; 2. Get request code and select a handler for the code.
-	mov	eax, [ebx+IOCTL.io_code]
+	mov	eax, [edx+IOCTL.io_code]
 	test	eax, eax	; check for SRV_GETVERSION
 	jnz	@f
 ; 3. This is SRV_GETVERSION request, no input, 4 bytes output, API_VERSION.