diff --git a/lib/CodeGen/ELFCodeEmitter.cpp b/lib/CodeGen/ELFCodeEmitter.cpp
index 3fb087c5ea8..660424c3c14 100644
--- a/lib/CodeGen/ELFCodeEmitter.cpp
+++ b/lib/CodeGen/ELFCodeEmitter.cpp
@@ -155,7 +155,7 @@ void ELFCodeEmitter::emitConstantPool(MachineConstantPool *MCP) {
     CPSections.push_back(CstPool.SectionIdx);
 
     if (CPE.isMachineConstantPoolEntry())
-      assert("CPE.isMachineConstantPoolEntry not supported yet");
+      assert(0 && "CPE.isMachineConstantPoolEntry not supported yet");
 
     // Emit the constant to constant pool section
     EW.EmitGlobalConstant(CPE.Val.ConstVal, CstPool);
diff --git a/lib/CodeGen/ELFCodeEmitter.h b/lib/CodeGen/ELFCodeEmitter.h
index 2ec1f6e873d..8671c674eec 100644
--- a/lib/CodeGen/ELFCodeEmitter.h
+++ b/lib/CodeGen/ELFCodeEmitter.h
@@ -58,13 +58,13 @@ namespace llvm {
 
     /// emitLabel - Emits a label
     virtual void emitLabel(MCSymbol *Label) {
-      assert("emitLabel not implemented");
+      assert(0 && "emitLabel not implemented");
     }
 
     /// getLabelAddress - Return the address of the specified LabelID, 
     /// only usable after the LabelID has been emitted.
     virtual uintptr_t getLabelAddress(MCSymbol *Label) const {
-      assert("getLabelAddress not implemented");
+      assert(0 && "getLabelAddress not implemented");
       return 0;
     }