diff --git a/cpukit/score/cpu/or1k/cpu.c b/cpukit/score/cpu/or1k/cpu.c
index b545739838..e9b77b2f7f 100644
--- a/cpukit/score/cpu/or1k/cpu.c
+++ b/cpukit/score/cpu/or1k/cpu.c
@@ -116,6 +116,19 @@ void _CPU_ISR_install_raw_handler(
    _ISR_Local_enable( level );
 }
 
+void _CPU_ISR_install_vector(
+  uint32_t         vector,
+  CPU_ISR_handler  new_handler,
+  CPU_ISR_handler *old_handler
+)
+{
+  _CPU_ISR_install_raw_handler(
+    vector,
+    (CPU_ISR_raw_handler) new_handler,
+    (CPU_ISR_raw_handler *) old_handler
+  );
+}
+
 void *_CPU_Thread_Idle_body( uintptr_t ignored )
 {
   do {
diff --git a/cpukit/score/cpu/or1k/include/rtems/score/cpu.h b/cpukit/score/cpu/or1k/include/rtems/score/cpu.h
index 7a6ac004fd..cc2b6ba6c5 100644
--- a/cpukit/score/cpu/or1k/include/rtems/score/cpu.h
+++ b/cpukit/score/cpu/or1k/include/rtems/score/cpu.h
@@ -468,18 +468,11 @@ void _CPU_ISR_install_raw_handler(
 
 typedef void ( *CPU_ISR_handler )( uint32_t );
 
-static inline void _CPU_ISR_install_vector(
+void _CPU_ISR_install_vector(
   uint32_t         vector,
   CPU_ISR_handler  new_handler,
   CPU_ISR_handler *old_handler
-)
-{
-  _CPU_ISR_install_raw_handler(
-    vector,
-    (CPU_ISR_raw_handler) new_handler,
-    (CPU_ISR_raw_handler *) old_handler
-  );
-}
+);
 
 RTEMS_NO_RETURN void *_CPU_Thread_Idle_body( uintptr_t ignored );