diff --git a/src/apps/debugger/debug_info/DwarfImageDebugInfo.cpp b/src/apps/debugger/debug_info/DwarfImageDebugInfo.cpp
index 4bb44425f7..f56516a18c 100644
--- a/src/apps/debugger/debug_info/DwarfImageDebugInfo.cpp
+++ b/src/apps/debugger/debug_info/DwarfImageDebugInfo.cpp
@@ -229,8 +229,8 @@ printf("  %ld compilation units\n", fFile->CountCompilationUnits());
 			// get the source location
 			const char* directoryPath = NULL;
 			const char* fileName = NULL;
-			uint32 line = ~0U;
-			uint32 column = ~0U;
+			int32 line = -1;
+			int32 column = -1;
 			DwarfUtils::GetDeclarationLocation(fFile, subprogramEntry,
 				directoryPath, fileName, line, column);
 
diff --git a/src/apps/debugger/dwarf/DwarfUtils.cpp b/src/apps/debugger/dwarf/DwarfUtils.cpp
index bd7c39d46f..b46b543f61 100644
--- a/src/apps/debugger/dwarf/DwarfUtils.cpp
+++ b/src/apps/debugger/dwarf/DwarfUtils.cpp
@@ -85,7 +85,7 @@ DwarfUtils::GetFullyQualifiedDIEName(const DebugInfoEntry* entry,
 /*static*/ bool
 DwarfUtils::GetDeclarationLocation(DwarfFile* dwarfFile,
 	const DebugInfoEntry* entry, const char*& _directory, const char*& _file,
-	uint32& _line, uint32& _column)
+	int32& _line, int32& _column)
 {
 	uint32 file;
 	uint32 line;
@@ -128,7 +128,7 @@ DwarfUtils::GetDeclarationLocation(DwarfFile* dwarfFile,
 
 	_directory = directoryName;
 	_file = fileName;
-	_line = line - 1;
-	_column = column - 1;
+	_line = (int32)line - 1;
+	_column = (int32)column - 1;
 	return true;
 }
diff --git a/src/apps/debugger/dwarf/DwarfUtils.h b/src/apps/debugger/dwarf/DwarfUtils.h
index 9d5e794d27..e0da2323fe 100644
--- a/src/apps/debugger/dwarf/DwarfUtils.h
+++ b/src/apps/debugger/dwarf/DwarfUtils.h
@@ -27,7 +27,7 @@ public:
 									const DebugInfoEntry* entry,
 									const char*& _directory,
 									const char*& _file,
-									uint32& _line, uint32& _column);
+									int32& _line, int32& _column);
 };