diff --git a/installer/macosx/CoderSetup.py b/installer/macosx/CoderSetup.py
index c49684cc..73535888 100644
--- a/installer/macosx/CoderSetup.py
+++ b/installer/macosx/CoderSetup.py
@@ -323,7 +323,7 @@ def formatSDDevice():
 
         pythonexe = os.path.dirname(sys.argv[0]) + "/../MacOS/python"
         open( logfile, 'w' ).close()
-        command = "osascript -e 'do shell script \"" + pythonexe + " -u formatsdcard.py really " + str( sdCardDev ) + " > " + logfile + " \" with administrator privileges'"
+        command = "osascript -e 'do shell script \"\\\"" + pythonexe + "\\\" -u formatsdcard.py really " + str( sdCardDev ) + " > " + logfile + " \" with administrator privileges'"
         print( "SYSTEM: " + command )
         #os.system( command )
         
diff --git a/installer/macosx/formatsdcard.py b/installer/macosx/formatsdcard.py
index 9706d2de..a0a03e36 100644
--- a/installer/macosx/formatsdcard.py
+++ b/installer/macosx/formatsdcard.py
@@ -50,7 +50,7 @@
 
     filesize = os.path.getsize( filepath )
     progresssize = 0
-    command = 'dd bs=2m if=' + filepath + ' of=/dev/rdisk' + str( sdCardDev )
+    command = 'dd bs=2m if="' + filepath + '" of=/dev/rdisk' + str( sdCardDev )
     print( "FORMATTING: " + command )
 
     proc = subprocess.Popen( command, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE )