diff --git a/include/assimp/defs.h b/include/assimp/defs.h
index 1e908afac..d2077d8b4 100644
--- a/include/assimp/defs.h
+++ b/include/assimp/defs.h
@@ -247,14 +247,14 @@ typedef double ai_real;
 typedef signed long long int ai_int;
 typedef unsigned long long int ai_uint;
 #ifndef ASSIMP_AI_REAL_TEXT_PRECISION
-#define ASSIMP_AI_REAL_TEXT_PRECISION 16
+#define ASSIMP_AI_REAL_TEXT_PRECISION 17
 #endif // ASSIMP_AI_REAL_TEXT_PRECISION
 #else // ASSIMP_DOUBLE_PRECISION
 typedef float ai_real;
 typedef signed int ai_int;
 typedef unsigned int ai_uint;
 #ifndef ASSIMP_AI_REAL_TEXT_PRECISION
-#define ASSIMP_AI_REAL_TEXT_PRECISION 8
+#define ASSIMP_AI_REAL_TEXT_PRECISION 9
 #endif // ASSIMP_AI_REAL_TEXT_PRECISION
 #endif // ASSIMP_DOUBLE_PRECISION