diff --git a/Arduino.mk b/Arduino.mk
index ff395d0..2448c03 100644
--- a/Arduino.mk
+++ b/Arduino.mk
@@ -702,7 +702,7 @@ endif
 ifeq ($(strip $(NO_CORE)),)
     ifndef MONITOR_BAUDRATE
         ifeq ($(words $(LOCAL_PDE_SRCS) $(LOCAL_INO_SRCS)), 1)
-            SPEED = $(shell egrep -h 'Serial.begin\([0-9]+\)' $(LOCAL_PDE_SRCS) $(LOCAL_INO_SRCS) | sed -e 's/[^0-9]//g'| head -n1)
+            SPEED = $(shell egrep -h 'Serial.begin *\([0-9]+\)' $(LOCAL_PDE_SRCS) $(LOCAL_INO_SRCS) | sed -e 's/[^0-9]//g'| head -n1)
             MONITOR_BAUDRATE = $(findstring $(SPEED),300 1200 2400 4800 9600 14400 19200 28800 38400 57600 115200)
         endif
 
diff --git a/HISTORY.md b/HISTORY.md
index 3ecd0d5..21ca01e 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -4,6 +4,9 @@ A Makefile for Arduino Sketches
 The following is the rough list of changes that went into different versions.
 I tried to give credit whenever possible. If I have missed anyone, kindly add it to the list.
 
+### 1.3.4 (In development)
+- Tweak: Allow spaces in "Serial.begin (....)". (Issue #190) (https://github.com/pdav)
+
 ### 1.3.3 (2014-04-12)
 - Fix: Make a new manpage for ard-reset-arduino. Fixes issue #188 (https://github.com/sej7278)