diff --git a/.gitignore b/.gitignore
index c36222e48d..f8e6c13665 100644
--- a/.gitignore
+++ b/.gitignore
@@ -287,4 +287,7 @@ result
 
 # Extra unit tests
 highs-unit-tests
-highs-problem-set
\ No newline at end of file
+highs-problem-set
+
+# debug nvidia
+build-cpu
\ No newline at end of file
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index e37b614998..989ffb4332 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -129,6 +129,13 @@ else()
   # Define library in modern CMake using target_*()
   # No interfaces (apart from c); No ipx; New (short) ctest instances.
   add_library(highs)
+
+  target_compile_definitions(highs
+            PUBLIC
+            # If the debug configuration pass the DEBUG define to the compiler
+            $<$<CONFIG:Debug>:CUPDLP_DEBUG>
+    )        
+    
   add_library(${PROJECT_NAMESPACE}::highs ALIAS highs)
 
   if(${BUILD_SHARED_LIBS})
diff --git a/src/pdlp/cupdlp/cupdlp_defs.h b/src/pdlp/cupdlp/cupdlp_defs.h
index b8a0b65023..716282859b 100644
--- a/src/pdlp/cupdlp/cupdlp_defs.h
+++ b/src/pdlp/cupdlp/cupdlp_defs.h
@@ -2,7 +2,7 @@
 #define CUPDLP_H_GUARD
 
 // #define CUPDLP_CPU
-// #define CUPDLP_DEBUG (0)
+#define CUPDLP_DEBUG (1)
 #define CUPDLP_TIMER
 
 #include "HConfig.h"