diff --git a/include/openlibm_math.h b/include/openlibm_math.h
index eca248d..e17e6ad 100644
--- a/include/openlibm_math.h
+++ b/include/openlibm_math.h
@@ -37,7 +37,7 @@
 # ifdef IMPORT_EXPORTS
 #  define OLM_DLLEXPORT __declspec(dllimport)
 # else
-#  define OLM_DLLEXPORT __declspec(OLM_DLLEXPORT)
+#  define OLM_DLLEXPORT __declspec(dllexport)
 # endif
 #else
 #define OLM_DLLEXPORT __attribute__ ((visibility("default")))
diff --git a/src/math_private.h b/src/math_private.h
index 2d40880..5c98046 100644
--- a/src/math_private.h
+++ b/src/math_private.h
@@ -360,7 +360,7 @@ long double __kernel_tanl(long double, long double, int);
 # ifdef IMPORT_EXPORTS
 #  define OLM_DLLEXPORT __declspec(dllimport)
 # else
-#  define OLM_DLLEXPORT __declspec(OLM_DLLEXPORT)
+#  define OLM_DLLEXPORT __declspec(dllexport)
 # endif
 #else
 #define OLM_DLLEXPORT __attribute__ ((visibility("default")))