diff --git a/include/mitsuba/core/constants.h b/include/mitsuba/core/constants.h
index 52f8a2c9..082e95b8 100644
--- a/include/mitsuba/core/constants.h
+++ b/include/mitsuba/core/constants.h
@@ -51,8 +51,8 @@
 #define ONE_MINUS_EPS_FLT 0.999999940395355225f
 #define ONE_MINUS_EPS_DBL 0.999999999999999888
 #else
-#define ONE_MINUS_EPS_FLT 0x1.fffffffffffff7p-1
-#define ONE_MINUS_EPS_DBL 0x1.fffffep-1f
+#define ONE_MINUS_EPS_FLT 0x1.fffffep-1f
+#define ONE_MINUS_EPS_DBL 0x1.fffffffffffff7p-1
 #endif
 
 #ifdef SINGLE_PRECISION