diff --git a/utils/ccc-analyzer b/utils/ccc-analyzer
index 98e083d..8f342ec 100755
--- a/utils/ccc-analyzer
+++ b/utils/ccc-analyzer
@@ -135,10 +135,8 @@
   # Set the analyzer flag.
   analysis_type = os.environ.get('CCC_ANALYZER_ANALYSIS')
   
-  if analysis_type is not None:
-    analysis_type = "-" + analysis_type
-  else:
-    analysis_type = "-warn-dead-stores -checker-cfref -warn-objc-methodsigs"
+  if analysis_type is None:
+    analysis_type = "-checker-cfref"
 
   # Determine the level of verbosity.
   if os.environ.get('CCC_ANALYZER_VERBOSE') is not None:
diff --git a/utils/scan-build b/utils/scan-build
index 6ee89de..a58751c 100755
--- a/utils/scan-build
+++ b/utils/scan-build
@@ -99,7 +99,8 @@
 my %AnalysesDefaultEnabled = (
   '-warn-dead-stores' => 1,
   '-checker-cfref' => 1,
-  '-warn-objc-methodsigs' => 1
+  '-warn-objc-methodsigs' => 1,
+  '-warn-objc-missing-dealloc' => 1
 );
 
 ##----------------------------------------------------------------------------##
@@ -827,10 +828,14 @@
   $ENV{'CCC_ANALYZER_LOG'} = 1;
 }
 
-if (scalar(@AnalysesToRun)) {
-  $ENV{'CCC_ANALYZER_ANALYSIS'} = join ' ',@AnalysesToRun;
+if (scalar(@AnalysesToRun) == 0) {
+  foreach my $key (keys %AnalysesDefaultEnabled) {
+    push @AnalysesToRun,$key;
+  }
 }
 
+$ENV{'CCC_ANALYZER_ANALYSIS'} = join ' ',@AnalysesToRun;
+
 # Run the build.
 
 my $ExitStatus = RunBuildCommand(\@ARGV, $IgnoreErrors, $Cmd);