diff --git a/hphp/runtime/base/builtin_functions.h b/hphp/runtime/base/builtin_functions.h
index 3cb8b0a74..9e4a51fb0 100644
--- a/hphp/runtime/base/builtin_functions.h
+++ b/hphp/runtime/base/builtin_functions.h
@@ -94,11 +94,11 @@ bool empty(CVarRef v, CStrRef, bool = false) = delete;
 inline Variant bitwise_or (CVarRef v1, CVarRef v2) { return v1 | v2;}
 inline Variant bitwise_and(CVarRef v1, CVarRef v2) { return v1 & v2;}
 inline Variant bitwise_xor(CVarRef v1, CVarRef v2) { return v1 ^ v2;}
-inline Numeric multiply(CVarRef v1, CVarRef v2)    { return v1 * v2;}
+inline Variant multiply(CVarRef v1, CVarRef v2)    { return v1 * v2;}
 inline Variant plus(CVarRef v1, CVarRef v2)        { return v1 + v2;}
-inline Numeric minus(CVarRef v1, CVarRef v2)       { return v1 - v2;}
-inline Numeric divide(CVarRef v1, CVarRef v2)      { return v1 / v2; }
-inline Numeric modulo(int64_t v1, int64_t v2) {
+inline Variant minus(CVarRef v1, CVarRef v2)       { return v1 - v2;}
+inline Variant divide(CVarRef v1, CVarRef v2)      { return v1 / v2; }
+inline Variant modulo(int64_t v1, int64_t v2) {
   if (UNLIKELY(v2 == 0)) {
     raise_warning(Strings::DIVISION_BY_ZERO);
     return false;
diff --git a/hphp/runtime/base/types.h b/hphp/runtime/base/types.h
index a49e639ea..9f1e8cc96 100644
--- a/hphp/runtime/base/types.h
+++ b/hphp/runtime/base/types.h
@@ -49,10 +49,6 @@ template<typename T> class SmartObject;
 class Variant;
 class VarNR;
 class RefData;
-typedef Variant Numeric;
-typedef Variant Primitive;
-typedef Variant PlusOperand;
-typedef Variant Sequence;
 
 /**
  * Macros related to Variant that are needed by StringData, ObjectData,
diff --git a/hphp/runtime/ext/ext_math.cpp b/hphp/runtime/ext/ext_math.cpp
index e63d7878c..46c273e48 100644
--- a/hphp/runtime/ext/ext_math.cpp
+++ b/hphp/runtime/ext/ext_math.cpp
@@ -168,7 +168,7 @@ Variant f_base_convert(CStrRef number, int64_t frombase, int64_t tobase) {
   return String(string_numeric_to_base(v, tobase), AttachString);
 }
 
-Numeric f_pow(CVarRef base, CVarRef exp) {
+Variant f_pow(CVarRef base, CVarRef exp) {
   int64_t bint, eint;
   double bdbl, edbl;
   DataType bt = base.toNumeric(bint, bdbl, true);
diff --git a/hphp/runtime/ext/ext_math.h b/hphp/runtime/ext/ext_math.h
index 3a317d922..5f8807692 100644
--- a/hphp/runtime/ext/ext_math.h
+++ b/hphp/runtime/ext/ext_math.h
@@ -73,7 +73,7 @@ Variant f_bindec(CStrRef binary_string);
 Variant f_hexdec(CStrRef hex_string);
 Variant f_octdec(CStrRef octal_string);
 Variant f_base_convert(CStrRef number, int64_t frombase, int64_t tobase);
-Numeric f_pow(CVarRef base, CVarRef exp);
+Variant f_pow(CVarRef base, CVarRef exp);
 double f_exp(double arg);
 double f_expm1(double arg);
 double f_log10(double arg);
diff --git a/hphp/runtime/vm/bytecode.cpp b/hphp/runtime/vm/bytecode.cpp
index d8fb07344..0b4c646f5 100644
--- a/hphp/runtime/vm/bytecode.cpp
+++ b/hphp/runtime/vm/bytecode.cpp
@@ -3716,7 +3716,7 @@ inline void OPTBLD_INLINE VMExecutionContext::iopDiv(PC& pc) {
 #undef MATHOP_DOUBLE
 
 // XXX:
-Numeric moduloVar(CVarRef v1, CVarRef v2) {
+Variant moduloVar(CVarRef v1, CVarRef v2) {
   return modulo(v1.toInt64(), v2.toInt64());
 }