diff --git a/lib/checkclass.cpp b/lib/checkclass.cpp
index 46219d230..76d379adb 100644
--- a/lib/checkclass.cpp
+++ b/lib/checkclass.cpp
@@ -35,11 +35,11 @@ namespace {
     CheckClass instance;
 }
 
-static const CWE CWE398(398U);	// Indicator of Poor Code Quality
-static const CWE CWE404(404U);	// Improper Resource Shutdown or Release
-static const CWE CWE665(665U);	// Improper Initialization
-static const CWE CWE758(758U);	// Reliance on Undefined, Unspecified, or Implementation-Defined Behavior
-static const CWE CWE762(762U);	// Mismatched Memory Management Routines
+static const CWE CWE398(398U);  // Indicator of Poor Code Quality
+static const CWE CWE404(404U);  // Improper Resource Shutdown or Release
+static const CWE CWE665(665U);  // Improper Initialization
+static const CWE CWE758(758U);  // Reliance on Undefined, Unspecified, or Implementation-Defined Behavior
+static const CWE CWE762(762U);  // Mismatched Memory Management Routines
 
 static const char * getFunctionTypeName(Function::Type type)
 {
diff --git a/lib/checkcondition.cpp b/lib/checkcondition.cpp
index 0dc2382d1..1685e5165 100644
--- a/lib/checkcondition.cpp
+++ b/lib/checkcondition.cpp
@@ -29,9 +29,9 @@
 #include <stack>
 
 // CWE ids used
-static const struct CWE CWE398(398U);	// Indicator of Poor Code Quality
-static const struct CWE CWE570(570U);	// Expression is Always False
-static const struct CWE CWE571(571U);	// Expression is Always True
+static const struct CWE CWE398(398U);   // Indicator of Poor Code Quality
+static const struct CWE CWE570(570U);   // Expression is Always False
+static const struct CWE CWE571(571U);   // Expression is Always True
 
 //---------------------------------------------------------------------------
 
@@ -1024,7 +1024,7 @@ void CheckCondition::alwaysTrueFalseError(const Token *tok, bool knownResult)
                 Severity::style,
                 "knownConditionTrueFalse",
                 "Condition '" + expr + "' is always " + (knownResult ? "true" : "false"),
-				(knownResult ? CWE571 : CWE570), false);
+                (knownResult ? CWE571 : CWE570), false);
 }
 
 void CheckCondition::checkInvalidTestForOverflow()
diff --git a/lib/checkexceptionsafety.h b/lib/checkexceptionsafety.h
index 05f0929da..e0507327b 100644
--- a/lib/checkexceptionsafety.h
+++ b/lib/checkexceptionsafety.h
@@ -27,7 +27,7 @@
 
 // CWE ID used:
 static const struct CWE CWE398(398U);   // Indicator of Poor Code Quality
-static const struct CWE CWE703(703U);	// Improper Check or Handling of Exceptional Conditions
+static const struct CWE CWE703(703U);   // Improper Check or Handling of Exceptional Conditions
 
 
 /// @addtogroup Checks