diff --git a/PDP10/ka10_pipanel.c b/PDP10/ka10_pipanel.c
index 4fe878c4..533843d0 100644
--- a/PDP10/ka10_pipanel.c
+++ b/PDP10/ka10_pipanel.c
@@ -407,7 +407,7 @@ void *blink(void *ptr)
                     leds |= (pi_enable) ? PION_LAMP : 0;
                     leds |= (PIR & PI_REQ_MASK6) << PI_REQ_V_6;
                     leds |= (PIH & PI_PRO_MASK6) << PI_PRO_V_6;
-		    leds |= (MI_flag) ? PI_LAMP : MI_LAMP;
+                    leds |= (MI_flag) ? PI_LAMP : MI_LAMP;
                     break;
             }
 
diff --git a/PDP10/kx10_cpu.c b/PDP10/kx10_cpu.c
index 1d36e013..89c1f24a 100644
--- a/PDP10/kx10_cpu.c
+++ b/PDP10/kx10_cpu.c
@@ -12263,7 +12263,7 @@ last:
         if (QITS)
             load_quantum();
 #endif
-	RUN = 0;
+        RUN = 0;
         return SCPE_STEP;
     }
 }