diff --git a/src/ifcconvert/IfcConvert.cpp b/src/ifcconvert/IfcConvert.cpp
index 7fdbe148fb..52bb79128b 100644
--- a/src/ifcconvert/IfcConvert.cpp
+++ b/src/ifcconvert/IfcConvert.cpp
@@ -244,7 +244,6 @@ int main(int argc, char** argv) {
 		("help,h", "display usage information")
 		("version", "display version information")
 		("verbose,v", po::value(&vcounter)->zero_tokens(), "more verbose log messages. Use twice (-vv) for debugging level.")
-		("debug,d", "write boolean operands to file in current directory for debugging purposes")
 		("quiet,q", "less status and progress output")
 #ifdef WITH_HDF5
 		("cache", "cache geometry creation. Use --cache-file to specify cache file path.")
diff --git a/src/ifcgeom/ConversionSettings.h b/src/ifcgeom/ConversionSettings.h
index a1506e20f2..33b75ab192 100644
--- a/src/ifcgeom/ConversionSettings.h
+++ b/src/ifcgeom/ConversionSettings.h
@@ -169,13 +169,13 @@ namespace ifcopenshell {
 				static constexpr double defaultvalue = 1.0;
 			};
 
-			struct DebugBooleanOperations : public SettingBase<DebugBooleanOperations, double> {
-				static constexpr const char* const name = "debug-boolean";
-				static constexpr const char* const description = "";
+			struct DebugBooleanOperations : public SettingBase<DebugBooleanOperations, bool> {
+				static constexpr const char* const name = "debug";
+				static constexpr const char* const description = "write boolean operands to file in current directory for debugging purposes";
 				static constexpr bool defaultvalue = false;
 			};
 
-			struct BooleanAttempt2d : public SettingBase<BooleanAttempt2d, double> {
+			struct BooleanAttempt2d : public SettingBase<BooleanAttempt2d, bool> {
 				static constexpr const char* const name = "boolean-attempt-2d";
 				static constexpr const char* const description = "Do not attempt to process boolean subtractions in 2D.";
 				static constexpr bool defaultvalue = true;