diff --git a/detekt/detekt-config.yml b/detekt/detekt-config.yml
index 365b23452d..b7aae10aa0 100644
--- a/detekt/detekt-config.yml
+++ b/detekt/detekt-config.yml
@@ -18,6 +18,9 @@ formatting:
     NoMultipleSpaces:
         active: true
         autoCorrect: false
+    SpacingAroundUnaryOperator:
+        active: true
+        autoCorrect: true
 
 style:
     MaxLineLength:
diff --git a/exposed-core/src/main/kotlin/org/jetbrains/exposed/sql/vendors/SQLServerDialect.kt b/exposed-core/src/main/kotlin/org/jetbrains/exposed/sql/vendors/SQLServerDialect.kt
index 7ef965cc98..14d242e385 100644
--- a/exposed-core/src/main/kotlin/org/jetbrains/exposed/sql/vendors/SQLServerDialect.kt
+++ b/exposed-core/src/main/kotlin/org/jetbrains/exposed/sql/vendors/SQLServerDialect.kt
@@ -267,7 +267,7 @@ open class SQLServerDialect : VendorDialect(dialectName, SQLServerDataTypeProvid
                     val isPKColumn = column.table.primaryKey?.columns?.contains(column) == true
 
                     if (column.columnType.nullable ||
-                        (defaultValue != null && column.defaultValueFun == null && ! currentDialect.isAllowedAsColumnDefault(defaultValue))
+                        (defaultValue != null && column.defaultValueFun == null && !currentDialect.isAllowedAsColumnDefault(defaultValue))
                     ) {
                         append(" NULL")
                     } else if (!isPKColumn) {