diff --git a/include/jrl/walkgen/pgtypes.hh b/include/jrl/walkgen/pgtypes.hh
index dea6eb411bc5b7c54d446cb7d76efd22beebc3f0..41a31024ae0942041f9f66fab069cbbb40db4e36 100644
--- a/include/jrl/walkgen/pgtypes.hh
+++ b/include/jrl/walkgen/pgtypes.hh
@@ -32,7 +32,7 @@
 
 // For Windows compatibility.
 #if defined (WIN32)
-#  ifdef walkGenJrl_EXPORTS
+#  ifdef jrl_walkgen_EXPORTS
 #    define WALK_GEN_JRL_EXPORT __declspec(dllexport)
 #  else
 #    define WALK_GEN_JRL_EXPORT __declspec(dllimport)
diff --git a/src/privatepgtypes.h b/src/privatepgtypes.h
index cb68abc51c0e81b58d95c1154165b51f32aead34..3f73f1a22844f20615a1f51103ec42473ef14e13 100644
--- a/src/privatepgtypes.h
+++ b/src/privatepgtypes.h
@@ -28,16 +28,6 @@
 #ifndef _PATTERN_GENERATOR_INTERNAL_PRIVATE_H_
 #define  _PATTERN_GENERATOR_INTERNAL_PRIVATE_H_
 
-// For Windows compatibility.
-#if defined (WIN32)
-#  ifdef walkGenJrl_EXPORTS
-#    define WALK_GEN_JRL_EXPORT __declspec(dllexport)
-#  else
-#    define WALK_GEN_JRL_EXPORT __declspec(dllimport)
-#  endif
-#else
-#  define WALK_GEN_JRL_EXPORT
-#endif
 namespace PatternGeneratorJRL
 {