diff --git a/config.mk b/config.mk
index 69a815c..6ba0250 100644
--- a/config.mk
+++ b/config.mk
@@ -44,3 +44,9 @@ ifneq ($(STRIP),)
   XLDFLAGS += -Wl,--strip-all
   DLL_LDFLAGS += -Wl,--strip-all
 endif
+
+ifneq ($(firstword $(filter MINGW32_NT-% MINGW64_NT-% CYGWIN_NT-%,$(shell uname))),)
+  ENV_LDPATH := PATH
+else
+  ENV_LDPATH := LD_LIBRARY_PATH
+endif
diff --git a/test/hash-map/Makefile b/test/hash-map/Makefile
index 7d35e51..872e8d1 100644
--- a/test/hash-map/Makefile
+++ b/test/hash-map/Makefile
@@ -21,7 +21,7 @@ $(ALL_PATH):
 	mkdir -p $@
 
 test: all
-	./$(BIN_FILE)
+	env $(ENV_LDPATH)="$(realpath .):$(realpath ../../libhashset/lib)$(if $($(ENV_LDPATH)),:$($(ENV_LDPATH)))" ./$(BIN_FILE)
 
 clean:
 	rm -vf $(BIN_FILE)
diff --git a/test/hash-set/Makefile b/test/hash-set/Makefile
index 33ddf34..5f85946 100644
--- a/test/hash-set/Makefile
+++ b/test/hash-set/Makefile
@@ -21,7 +21,7 @@ $(ALL_PATH):
 	mkdir -p $@
 
 test: all
-	./$(BIN_FILE)
+	env $(ENV_LDPATH)="$(realpath .):$(realpath ../../libhashset/lib)$(if $($(ENV_LDPATH)),:$($(ENV_LDPATH)))" ./$(BIN_FILE)
 
 clean:
 	rm -vf $(BIN_FILE)