diff --git a/arch/arm/src/common/Make.defs b/arch/arm/src/common/Make.defs
index df5340234cf..4d5061fa06f 100644
--- a/arch/arm/src/common/Make.defs
+++ b/arch/arm/src/common/Make.defs
@@ -65,7 +65,11 @@ endif
 
 ifeq ($(CONFIG_SCHED_BACKTRACE),y)
   ifeq ($(CONFIG_FRAME_POINTER),y)
-    CMN_CSRCS += arm_backtrace_fp.c
+    ifeq ($(CONFIG_ARM_THUMB),y)
+      CMN_CSRCS += arm_backtrace_thumb.c
+    else
+      CMN_CSRCS += arm_backtrace_fp.c
+    endif
   else
     CMN_CSRCS += arm_backtrace_thumb.c
   endif