diff --git a/pcbnew/import_gfx/dxf_import_plugin.h b/pcbnew/import_gfx/dxf_import_plugin.h
index 6d3a88e444..dc2151741c 100644
--- a/pcbnew/import_gfx/dxf_import_plugin.h
+++ b/pcbnew/import_gfx/dxf_import_plugin.h
@@ -324,7 +324,7 @@ private:
     virtual void addDimDiametric( const DL_DimensionData&,
             const DL_DimDiametricData& ) override { ON_UNSUPPORTED( "addDimDiametric" ); }
     virtual void addDimAngular( const DL_DimensionData&,
-            const DL_DimAngularData& ) override { ON_UNSUPPORTED( "addDimAngular" ); }
+            const DL_DimAngular2LData& ) override { ON_UNSUPPORTED( "addDimAngular" ); }
     virtual void addDimAngular3P( const DL_DimensionData&,
             const DL_DimAngular3PData& ) override { ON_UNSUPPORTED( "addDimAngular3P" ); }
     virtual void addDimOrdinate( const DL_DimensionData&,
diff --git a/thirdparty/dxflib_qcad/dl_creationadapter.h b/thirdparty/dxflib_qcad/dl_creationadapter.h
index 326dbb5fcc..ebafcaa760 100644
--- a/thirdparty/dxflib_qcad/dl_creationadapter.h
+++ b/thirdparty/dxflib_qcad/dl_creationadapter.h
@@ -84,7 +84,7 @@ public:
     virtual void addDimDiametric( const DL_DimensionData&,
             const DL_DimDiametricData& ) override {}
     virtual void addDimAngular( const DL_DimensionData&,
-            const DL_DimAngularData& ) override {}
+            const DL_DimAngular2LData& ) override {}
     virtual void addDimAngular3P( const DL_DimensionData&,
             const DL_DimAngular3PData& ) override {}
     virtual void addDimOrdinate( const DL_DimensionData&,
diff --git a/thirdparty/dxflib_qcad/dl_creationinterface.h b/thirdparty/dxflib_qcad/dl_creationinterface.h
index 80eeacee73..61b346dd3d 100644
--- a/thirdparty/dxflib_qcad/dl_creationinterface.h
+++ b/thirdparty/dxflib_qcad/dl_creationinterface.h
@@ -196,7 +196,7 @@ public:
      * Called for every angular dimension (2 lines version) entity.
      */
     virtual void addDimAngular( const DL_DimensionData& data,
-            const DL_DimAngularData& edata ) = 0;
+            const DL_DimAngular2LData& edata ) = 0;
 
     /**
      * Called for every angular dimension (3 points version) entity.
diff --git a/thirdparty/dxflib_qcad/dl_dxf.cpp b/thirdparty/dxflib_qcad/dl_dxf.cpp
index 99950e9adf..f902fc7360 100644
--- a/thirdparty/dxflib_qcad/dl_dxf.cpp
+++ b/thirdparty/dxflib_qcad/dl_dxf.cpp
@@ -2168,7 +2168,7 @@ void DL_Dxf::addDimAngular( DL_CreationInterface* creationInterface )
     DL_DimensionData d = getDimData();
 
     // angular dimension:
-    DL_DimAngularData da(
+    DL_DimAngular2LData da(
             // definition point 1
             getRealValue( 13, 0.0 ),
             getRealValue( 23, 0.0 ),
@@ -3806,9 +3806,9 @@ void DL_Dxf::writeDimDiametric( DL_WriterA& dw,
  * @param data Specific angular dimension data from the file
  * @param aAttrib Attributes
  */
-void DL_Dxf::writeDimAngular( DL_WriterA& dw,
+void DL_Dxf::writeDimAngular2L( DL_WriterA& dw,
         const DL_DimensionData& data,
-        const DL_DimAngularData& edata,
+        const DL_DimAngular2LData& edata,
         const DL_Attributes& aAttrib )
 {
     dw.entity( "DIMENSION" );
diff --git a/thirdparty/dxflib_qcad/dl_dxf.h b/thirdparty/dxflib_qcad/dl_dxf.h
index 14e6dd0aec..2954cba7a3 100644
--- a/thirdparty/dxflib_qcad/dl_dxf.h
+++ b/thirdparty/dxflib_qcad/dl_dxf.h
@@ -293,9 +293,9 @@ public:
             const DL_DimensionData& data,
             const DL_DimDiametricData& edata,
             const DL_Attributes& attrib );
-    void writeDimAngular( DL_WriterA& dw,
+    void writeDimAngular2L( DL_WriterA& dw,
             const DL_DimensionData& data,
-            const DL_DimAngularData& edata,
+            const DL_DimAngular2LData& edata,
             const DL_Attributes& attrib );
     void writeDimAngular3P( DL_WriterA& dw,
             const DL_DimensionData& data,
diff --git a/thirdparty/dxflib_qcad/dl_entities.h b/thirdparty/dxflib_qcad/dl_entities.h
index 33bb56f515..a65ad3aa76 100644
--- a/thirdparty/dxflib_qcad/dl_entities.h
+++ b/thirdparty/dxflib_qcad/dl_entities.h
@@ -1402,13 +1402,13 @@ struct DXFLIB_EXPORT DL_DimDiametricData
 /**
  * Angular Dimension Data.
  */
-struct DXFLIB_EXPORT DL_DimAngularData
+struct DXFLIB_EXPORT DL_DimAngular2LData
 {
     /**
      * Constructor.
      * Parameters: see member variables.
      */
-    DL_DimAngularData( double ddpx1, double ddpy1, double ddpz1,
+    DL_DimAngular2LData( double ddpx1, double ddpy1, double ddpz1,
             double ddpx2, double ddpy2, double ddpz2,
             double ddpx3, double ddpy3, double ddpz3,
             double ddpx4, double ddpy4, double ddpz4 )
@@ -1430,7 +1430,7 @@ struct DXFLIB_EXPORT DL_DimAngularData
         dpz4 = ddpz4;
     }
 
-    /*! X Coordinate of definition point 1. */
+    /*! X Coordinate of definition point 1. (extension line 1 end). */
     double dpx1;
 
     /*! Y Coordinate of definition point 1. */
@@ -1439,7 +1439,7 @@ struct DXFLIB_EXPORT DL_DimAngularData
     /*! Z Coordinate of definition point 1. */
     double dpz1;
 
-    /*! X Coordinate of definition point 2. */
+    /*! X Coordinate of definition point 2. (extension line 2 end). */
     double dpx2;
 
     /*! Y Coordinate of definition point 2. */
@@ -1448,7 +1448,7 @@ struct DXFLIB_EXPORT DL_DimAngularData
     /*! Z Coordinate of definition point 2. */
     double dpz2;
 
-    /*! X Coordinate of definition point 3. */
+    /*! X Coordinate of definition point 3. (center). */
     double dpx3;
 
     /*! Y Coordinate of definition point 3. */