Index: uspace/lib/libc/arch/arm32/src/syscall.c
===================================================================
--- uspace/lib/libc/arch/arm32/src/syscall.c	(revision cd7693052741154ea8729bf8efd228ebe4e2348c)
+++ uspace/lib/libc/arch/arm32/src/syscall.c	(revision fc6dd18feebbc66893aec4d86827b7c815dbbfe7)
@@ -60,6 +60,7 @@
 	register sysarg_t __arm_reg_r5 asm("r5") = p6;
 	register sysarg_t __arm_reg_r6 asm("r6") = id;
-
-	asm volatile ( "swi"
+	
+	asm volatile (
+		"swi 0"
 		: "=r" (__arm_reg_r0)
 		: "r" (__arm_reg_r0),
@@ -71,5 +72,5 @@
 		  "r" (__arm_reg_r6)
 	);
-
+	
 	return __arm_reg_r0;
 }