diff --git a/src/apps/debugger/arch/Architecture.h b/src/apps/debugger/arch/Architecture.h
index 6d0170c353..7c6b687aa2 100644
--- a/src/apps/debugger/arch/Architecture.h
+++ b/src/apps/debugger/arch/Architecture.h
@@ -66,6 +66,9 @@ public:
 	virtual	status_t			ReadValueFromMemory(target_addr_t address,
 									uint32 valueType, BVariant& _value) const
 										= 0;
+	virtual	status_t			ReadValueFromMemory(target_addr_t addressSpace,
+									target_addr_t address, uint32 valueType,
+									BVariant& _value) const = 0;
 
 	virtual	status_t			DisassembleCode(FunctionDebugInfo* function,
 									const void* buffer, size_t bufferSize,
diff --git a/src/apps/debugger/arch/x86/ArchitectureX86.cpp b/src/apps/debugger/arch/x86/ArchitectureX86.cpp
index 2d3df2be52..feed747776 100644
--- a/src/apps/debugger/arch/x86/ArchitectureX86.cpp
+++ b/src/apps/debugger/arch/x86/ArchitectureX86.cpp
@@ -454,6 +454,15 @@ ArchitectureX86::ReadValueFromMemory(target_addr_t address, uint32 valueType,
 }
 
 
+status_t
+ArchitectureX86::ReadValueFromMemory(target_addr_t addressSpace,
+	target_addr_t address, uint32 valueType, BVariant& _value) const
+{
+	// n/a on this architecture
+	return B_BAD_VALUE;
+}
+
+
 status_t
 ArchitectureX86::DisassembleCode(FunctionDebugInfo* function,
 	const void* buffer, size_t bufferSize, DisassembledCode*& _sourceCode)
diff --git a/src/apps/debugger/arch/x86/ArchitectureX86.h b/src/apps/debugger/arch/x86/ArchitectureX86.h
index 5a85d523c3..ba20101a35 100644
--- a/src/apps/debugger/arch/x86/ArchitectureX86.h
+++ b/src/apps/debugger/arch/x86/ArchitectureX86.h
@@ -43,6 +43,9 @@ public:
 
 	virtual	status_t			ReadValueFromMemory(target_addr_t address,
 									uint32 valueType, BVariant& _value) const;
+	virtual	status_t			ReadValueFromMemory(target_addr_t addressSpace,
+									target_addr_t address, uint32 valueType,
+									BVariant& _value) const;
 
 	virtual	status_t			DisassembleCode(FunctionDebugInfo* function,
 									const void* buffer, size_t bufferSize,