diff --git a/tests/core/arch-arm/stalker-arm.c b/tests/core/arch-arm/stalker-arm.c
index 62c1616ad..f36fb3106 100644
--- a/tests/core/arch-arm/stalker-arm.c
+++ b/tests/core/arch-arm/stalker-arm.c
@@ -3227,8 +3227,8 @@ add_n_return_value_increments (GumStalkerIterator * iterator,
 
 TESTCODE (arm_simple_call,
     0x04, 0xe0, 0x2d, 0xe5, /* push {lr}       */
-    0x14, 0x05, 0x00, 0xe3, /* mov r0, 1300    */
-    0xfe, 0xff, 0xff, 0xfa, /* blx bump_number */
+    0x0d, 0x00, 0x00, 0xe3, /* mov r0, 13      */
+    0x00, 0x00, 0x00, 0xfa, /* blx bump_number */
     0x04, 0xf0, 0x9d, 0xe4, /* pop {pc}        */
     /* bump_number:                            */
     0x25, 0x00, 0x80, 0xe2, /* add r0, 37      */