diff --git a/diktat-rules/src/main/kotlin/org/cqfn/diktat/ruleset/rules/chapter3/BlockStructureBraces.kt b/diktat-rules/src/main/kotlin/org/cqfn/diktat/ruleset/rules/chapter3/BlockStructureBraces.kt
index a8f7e16ed5..c7bdf700c6 100644
--- a/diktat-rules/src/main/kotlin/org/cqfn/diktat/ruleset/rules/chapter3/BlockStructureBraces.kt
+++ b/diktat-rules/src/main/kotlin/org/cqfn/diktat/ruleset/rules/chapter3/BlockStructureBraces.kt
@@ -235,7 +235,7 @@ class BlockStructureBraces(configRules: List<RulesConfig>) : DiktatRule(
         }
         var space = node.findChildByType(RBRACE)!!.treePrev
         node.findParentNodeWithSpecificType(ElementType.LAMBDA_ARGUMENT)?.let {
-            if (space.text == "") {
+            if (space.text.isEmpty()) {
                 space = space.treePrev
             }
         }
diff --git a/diktat-rules/src/main/kotlin/org/cqfn/diktat/ruleset/rules/chapter3/files/BlankLinesRule.kt b/diktat-rules/src/main/kotlin/org/cqfn/diktat/ruleset/rules/chapter3/files/BlankLinesRule.kt
index 0e59e97c63..5141ee3749 100644
--- a/diktat-rules/src/main/kotlin/org/cqfn/diktat/ruleset/rules/chapter3/files/BlankLinesRule.kt
+++ b/diktat-rules/src/main/kotlin/org/cqfn/diktat/ruleset/rules/chapter3/files/BlankLinesRule.kt
@@ -47,6 +47,7 @@ class BlankLinesRule(configRules: List<RulesConfig>) : DiktatRule(
                     it.elementType == CLASS_BODY || it.elementType == FUNCTION_LITERAL
         }) {
             node.findParentNodeWithSpecificType(LAMBDA_ARGUMENT)?.let {
+                // Lambda body is always has a BLOCK -> run { } - (LBRACE, WHITE_SPACE, BLOCK "", RBRACE)
                 if ((node.treeNext?.treeNext?.elementType == RBRACE) && (node.treePrev.elementType == LBRACE)) {
                     val freeText = "do not put newlines in empty lambda"
                     TOO_MANY_BLANK_LINES.warnAndFix(configRules, emitWarn, isFixMode, freeText, node.startOffset, node) {