diff --git a/os/ports/GCC/PPC/SPC563Mxx/core.s b/os/ports/GCC/PPC/SPC563Mxx/core.s
index a891783fc..a1b3ca37b 100644
--- a/os/ports/GCC/PPC/SPC563Mxx/core.s
+++ b/os/ports/GCC/PPC/SPC563Mxx/core.s
@@ -154,7 +154,7 @@ _ivinit:
         lis         %r3, _unhandled_exception@h
         ori         %r3, %r3, _unhandled_exception@l
 
-        mtspr       400, %r3    /* IVOR0-15 */
+        mtspr       400, %r3        /* IVOR0-15 */
         mtspr       401, %r3
         mtspr       402, %r3
         mtspr       403, %r3
diff --git a/os/ports/GCC/PPC/SPC564Axx/core.s b/os/ports/GCC/PPC/SPC564Axx/core.s
index 81fc7fa17..074675c46 100644
--- a/os/ports/GCC/PPC/SPC564Axx/core.s
+++ b/os/ports/GCC/PPC/SPC564Axx/core.s
@@ -182,7 +182,7 @@ _ivinit:
         lis         %r3, _unhandled_exception@h
         ori         %r3, %r3, _unhandled_exception@l
 
-        mtspr       400, %r3    /* IVOR0-15 */
+        mtspr       400, %r3        /* IVOR0-15 */
         mtspr       401, %r3
         mtspr       402, %r3
         mtspr       403, %r3