diff --git a/drivers/unix/os_unix.cpp b/drivers/unix/os_unix.cpp
index 387e048221b..1ffacdf98d6 100644
--- a/drivers/unix/os_unix.cpp
+++ b/drivers/unix/os_unix.cpp
@@ -647,7 +647,7 @@ Error OS_Unix::open_dynamic_library(const String p_path, void *&p_library_handle
 	}
 
 	p_library_handle = dlopen(path.utf8().get_data(), RTLD_NOW);
-	ERR_FAIL_COND_V_MSG(!p_library_handle, ERR_CANT_OPEN, "Can't open dynamic library: " + p_path + ". Error: " + dlerror());
+	ERR_FAIL_COND_V_MSG(!p_library_handle, ERR_CANT_OPEN, vformat("Can't open dynamic library: %s. Error: %s.", p_path, dlerror()));
 
 	if (r_resolved_path != nullptr) {
 		*r_resolved_path = path;
diff --git a/platform/android/os_android.cpp b/platform/android/os_android.cpp
index c3a7d700341..c040d8c4c61 100644
--- a/platform/android/os_android.cpp
+++ b/platform/android/os_android.cpp
@@ -167,7 +167,7 @@ Error OS_Android::open_dynamic_library(const String p_path, void *&p_library_han
 	}
 
 	p_library_handle = dlopen(path.utf8().get_data(), RTLD_NOW);
-	ERR_FAIL_NULL_V_MSG(p_library_handle, ERR_CANT_OPEN, "Can't open dynamic library: " + p_path + ", error: " + dlerror() + ".");
+	ERR_FAIL_NULL_V_MSG(p_library_handle, ERR_CANT_OPEN, vformat("Can't open dynamic library: %s. Error: %s.", p_path, dlerror()));
 
 	if (r_resolved_path != nullptr) {
 		*r_resolved_path = path;
diff --git a/platform/ios/os_ios.mm b/platform/ios/os_ios.mm
index 461c226070d..50102e02cc4 100644
--- a/platform/ios/os_ios.mm
+++ b/platform/ios/os_ios.mm
@@ -257,7 +257,7 @@ Error OS_IOS::open_dynamic_library(const String p_path, void *&p_library_handle,
 	}
 
 	p_library_handle = dlopen(path.utf8().get_data(), RTLD_NOW);
-	ERR_FAIL_COND_V_MSG(!p_library_handle, ERR_CANT_OPEN, "Can't open dynamic library: " + p_path + ", error: " + dlerror() + ".");
+	ERR_FAIL_COND_V_MSG(!p_library_handle, ERR_CANT_OPEN, vformat("Can't open dynamic library: %s. Error: %s.", p_path, dlerror()));
 
 	if (r_resolved_path != nullptr) {
 		*r_resolved_path = path;
diff --git a/platform/macos/os_macos.mm b/platform/macos/os_macos.mm
index fe6d8d9fb06..69062c5920d 100644
--- a/platform/macos/os_macos.mm
+++ b/platform/macos/os_macos.mm
@@ -189,7 +189,7 @@ Error OS_MacOS::open_dynamic_library(const String p_path, void *&p_library_handl
 	}
 
 	p_library_handle = dlopen(path.utf8().get_data(), RTLD_NOW);
-	ERR_FAIL_COND_V_MSG(!p_library_handle, ERR_CANT_OPEN, "Can't open dynamic library: " + p_path + ", error: " + dlerror() + ".");
+	ERR_FAIL_COND_V_MSG(!p_library_handle, ERR_CANT_OPEN, vformat("Can't open dynamic library: %s. Error: %s.", p_path, dlerror()));
 
 	if (r_resolved_path != nullptr) {
 		*r_resolved_path = path;
diff --git a/platform/uwp/os_uwp.cpp b/platform/uwp/os_uwp.cpp
index df7923660c7..b9cd9d0baa2 100644
--- a/platform/uwp/os_uwp.cpp
+++ b/platform/uwp/os_uwp.cpp
@@ -745,7 +745,7 @@ static String format_error_message(DWORD id) {
 Error OS_UWP::open_dynamic_library(const String p_path, void *&p_library_handle, bool p_also_set_library_path, String *r_resolved_path) {
 	String full_path = "game/" + p_path;
 	p_library_handle = (void *)LoadPackagedLibrary((LPCWSTR)(full_path.utf16().get_data()), 0);
-	ERR_FAIL_COND_V_MSG(!p_library_handle, ERR_CANT_OPEN, "Can't open dynamic library: " + full_path + ", error: " + format_error_message(GetLastError()) + ".");
+	ERR_FAIL_COND_V_MSG(!p_library_handle, ERR_CANT_OPEN, vformat("Can't open dynamic library: %s. Error: %s.", full_path, format_error_message(GetLastError())));
 
 	if (r_resolved_path != nullptr) {
 		*r_resolved_path = full_path;
diff --git a/platform/web/os_web.cpp b/platform/web/os_web.cpp
index 5115ff50dac..9ee8f90e89c 100644
--- a/platform/web/os_web.cpp
+++ b/platform/web/os_web.cpp
@@ -232,7 +232,7 @@ bool OS_Web::is_userfs_persistent() const {
 Error OS_Web::open_dynamic_library(const String p_path, void *&p_library_handle, bool p_also_set_library_path, String *r_resolved_path) {
 	String path = p_path.get_file();
 	p_library_handle = dlopen(path.utf8().get_data(), RTLD_NOW);
-	ERR_FAIL_COND_V_MSG(!p_library_handle, ERR_CANT_OPEN, "Can't open dynamic library: " + p_path + ". Error: " + dlerror());
+	ERR_FAIL_COND_V_MSG(!p_library_handle, ERR_CANT_OPEN, vformat("Can't open dynamic library: %s. Error: %s.", p_path, dlerror()));
 
 	if (r_resolved_path != nullptr) {
 		*r_resolved_path = path;
diff --git a/platform/windows/os_windows.cpp b/platform/windows/os_windows.cpp
index cb70f93a62f..df93631ef05 100644
--- a/platform/windows/os_windows.cpp
+++ b/platform/windows/os_windows.cpp
@@ -389,13 +389,13 @@ Error OS_Windows::open_dynamic_library(const String p_path, void *&p_library_han
 				}
 				missing += E;
 			}
-			ERR_FAIL_V_MSG(ERR_CANT_OPEN, vformat("Can't open dynamic library: %s, missing dependencies: (%s), error: \"%s\".", p_path, missing, format_error_message(err_code)));
+			ERR_FAIL_V_MSG(ERR_CANT_OPEN, vformat("Can't open dynamic library: %s. Missing dependencies: %s. Error: %s.", p_path, missing, format_error_message(err_code)));
 		} else {
-			ERR_FAIL_V_MSG(ERR_CANT_OPEN, vformat("Can't open dynamic library: %s, error: \"%s\"." + p_path, format_error_message(err_code)));
+			ERR_FAIL_V_MSG(ERR_CANT_OPEN, vformat("Can't open dynamic library: %s. Error: %s.", p_path, format_error_message(err_code)));
 		}
 	}
 #else
-	ERR_FAIL_COND_V_MSG(!p_library_handle, ERR_CANT_OPEN, vformat("Can't open dynamic library: %s, error: \"%s\"." + p_path, format_error_message(GetLastError())));
+	ERR_FAIL_COND_V_MSG(!p_library_handle, ERR_CANT_OPEN, vformat("Can't open dynamic library: %s. Error: %s.", p_path, format_error_message(GetLastError())));
 #endif
 
 	if (cookie) {