diff --git a/stdex/include/core.h b/stdex/include/core.h
index 65416143..c506391c 100644
--- a/stdex/include/core.h
+++ b/stdex/include/core.h
@@ -88,13 +88,13 @@
 #ifndef NDEBUG
 	#include <iostream>
 	#define stdex_assert(condition, message) \
-    do { \
-        if (! (condition)) { \
-            std::cerr << "Assertion `" #condition "` failed in " << __FILE__ \
-                      << " line " << __LINE__ << ": " << message << std::endl; \
-            std::terminate(); \
-        } \
-    } while (false)
+	do { \
+		if (! (condition)) { \
+			std::cerr << "Assertion `" #condition "` failed in " << __FILE__ \
+					  << " line " << __LINE__ << ": " << message << std::endl; \
+			std::terminate(); \
+		} \
+	} while (false)
 #else
 	#define stdex_assert(condition, message) ((void)0)
 #endif