diff --git a/ext/bigdecimal/bigdecimal.c b/ext/bigdecimal/bigdecimal.c
index 65f412e6..888b21f2 100644
--- a/ext/bigdecimal/bigdecimal.c
+++ b/ext/bigdecimal/bigdecimal.c
@@ -4007,7 +4007,7 @@ VpException(unsigned short f, const char *str,int always)
 {
     unsigned short const exception_mode = VpGetException();
 
-    if (f == VP_EXCEPTION_OP || f == VP_EXCEPTION_MEMORY) always = 1;
+    if (f == VP_EXCEPTION_OP) always = 1;
 
     if (always || (exception_mode & f)) {
 	switch(f) {
@@ -4019,7 +4019,6 @@ VpException(unsigned short f, const char *str,int always)
 	  case VP_EXCEPTION_OP:
 	    rb_raise(rb_eFloatDomainError, "%s", str);
 	    break;
-	  case VP_EXCEPTION_MEMORY:
 	  default:
 	    rb_fatal("%s", str);
 	}
diff --git a/ext/bigdecimal/bigdecimal.h b/ext/bigdecimal/bigdecimal.h
index c89f212a..80278738 100644
--- a/ext/bigdecimal/bigdecimal.h
+++ b/ext/bigdecimal/bigdecimal.h
@@ -221,7 +221,6 @@ extern VALUE rb_cBigDecimal;
 
 /* Following 2 exceptions can't controlled by user */
 #define VP_EXCEPTION_OP         ((unsigned short)0x0020)
-#define VP_EXCEPTION_MEMORY     ((unsigned short)0x0040)
 
 #define RMPD_EXCEPTION_MODE_DEFAULT 0U