diff --git a/code/CMakeLists.txt b/code/CMakeLists.txt
index e4e67e682..30730f716 100644
--- a/code/CMakeLists.txt
+++ b/code/CMakeLists.txt
@@ -1334,7 +1334,7 @@ ADD_LIBRARY(assimp::assimp ALIAS assimp)
 IF (BUILD_SHARED_LIBS)
   TARGET_COMPILE_DEFINITIONS(assimp PRIVATE ASSIMP_BUILD_DLL_EXPORT)
 ELSE ()
-  TARGET_COMPILE_DEFINITIONS(assimp PRIVATE OPENDDL_STATIC_LIBARY)
+  TARGET_COMPILE_DEFINITIONS(assimp PRIVATE OPENDDL_STATIC_LIBARY P2T_STATIC_EXPORTS)
 ENDIF ()
 
 TARGET_USE_COMMON_OUTPUT_DIRECTORY(assimp)
diff --git a/contrib/poly2tri/poly2tri/common/dll_symbol.h b/contrib/poly2tri/poly2tri/common/dll_symbol.h
index 72ed5a75f..c18c2baec 100644
--- a/contrib/poly2tri/poly2tri/common/dll_symbol.h
+++ b/contrib/poly2tri/poly2tri/common/dll_symbol.h
@@ -53,7 +53,9 @@
 #    define P2T_DLL_SYMBOL
 #  elif defined(P2T_SHARED_EXPORTS)
 #    define P2T_DLL_SYMBOL P2T_COMPILER_DLLEXPORT
-#  else
+#  elif defined(BUILD_SHARED_LIBS)
 #    define P2T_DLL_SYMBOL P2T_COMPILER_DLLIMPORT
+#  else
+#    define P2T_DLL_SYMBOL
 #  endif
 #endif