diff --git a/cpukit/score/cpu/arm/arm-context-validate.S b/cpukit/score/cpu/arm/arm-context-validate.S
index 25266918b9..5c6ac217c5 100644
--- a/cpukit/score/cpu/arm/arm-context-validate.S
+++ b/cpukit/score/cpu/arm/arm-context-validate.S
@@ -47,7 +47,7 @@
 	.syntax	unified
 	.section	.text
 
-#ifdef __thumb__
+#ifdef __thumb2__
 FUNCTION_THUMB_ENTRY(_CPU_Context_validate)
 #else
 FUNCTION_ENTRY(_CPU_Context_validate)