diff --git a/springdoc-openapi-starter-common/src/main/java/org/springdoc/core/utils/PropertyResolverUtils.java b/springdoc-openapi-starter-common/src/main/java/org/springdoc/core/utils/PropertyResolverUtils.java
index e70e9666e..dfa282e82 100644
--- a/springdoc-openapi-starter-common/src/main/java/org/springdoc/core/utils/PropertyResolverUtils.java
+++ b/springdoc-openapi-starter-common/src/main/java/org/springdoc/core/utils/PropertyResolverUtils.java
@@ -143,7 +143,7 @@ private int resolveMinIndent(String[] lines) {
 	private int countLeadingSpaces(String line) {
         int count = 0;
         for (char ch : line.toCharArray()) {
-            if (ch != ' ') break;
+            if (ch != ' ' && ch != '\t') break;
             count++;
         }
         return count;
@@ -222,4 +222,4 @@ public Map<String, Object> resolveExtensions(Locale locale, Map<String, Object>
 		else
 			return extensions;
 	}
-}
\ No newline at end of file
+}