diff --git a/CHANGELOG.md b/CHANGELOG.md
index 80fde95..e168cde 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Change log
 
+## 1.7.4
+
+-   💊 Fixing URL encoding issues
+
 ## 1.7.3
 
 -   🎁 Improve menu structure, adding "Reset time & date"
diff --git a/src/WettergeraetDesktop/Frame.cpp b/src/WettergeraetDesktop/Frame.cpp
index a23ee56..a306a54 100644
--- a/src/WettergeraetDesktop/Frame.cpp
+++ b/src/WettergeraetDesktop/Frame.cpp
@@ -456,17 +456,12 @@ void Frame::actionFetch(wxCommandEvent& WXUNUSED(event))
 		return;
 	}
 
-	auto date = this->utcDateInput->GetValue().FormatISODate().mb_str().data();
-	auto time = this->utcTimeInput->GetValue().FormatISOTime().mb_str().data();
-
-	// yyyy-mm-ddThh:mm:ssZ
-	char searchDate[25];
-	sprintf(
-		searchDate,
-		"%sT%sZ",
-		date,
-		time
-	);
+	auto searchDate = this->utcDateInput->GetValue().FormatISODate().ToStdString()
+		.append("T")
+		.append(
+			this->utcTimeInput->GetValue().FormatISOTime().ToStdString()
+		)
+		.append("Z");
 
 	this->metarInput->SetValue("Loading...");
 	FetchUrl urlFetcher;
diff --git a/src/WettergeraetLib/Argumentor.cpp b/src/WettergeraetLib/Argumentor.cpp
index 338ffd3..1ed6c17 100644
--- a/src/WettergeraetLib/Argumentor.cpp
+++ b/src/WettergeraetLib/Argumentor.cpp
@@ -3,7 +3,7 @@
 #include <sstream>
 #include <iterator>
 
-const char* Argumentor::APP_VERSION = "1.7.3";
+const char* Argumentor::APP_VERSION = "1.7.4";
 #if _WIN64
 const char* Argumentor::APP_TARGET = "64-bit";
 #else
diff --git a/src/WettergeraetLib/FetchUrl.cpp b/src/WettergeraetLib/FetchUrl.cpp
index a0ba29e..46344f5 100644
--- a/src/WettergeraetLib/FetchUrl.cpp
+++ b/src/WettergeraetLib/FetchUrl.cpp
@@ -106,7 +106,7 @@ std::string FetchUrl::fetch(std::string url, unsigned short fetchMode, std::stri
 			throw std::invalid_argument("Timeout for " + url);
 		}
 		else if (res != CURLE_OK) {
-			throw std::invalid_argument(curl_easy_strerror(res));
+			throw std::invalid_argument(std::string(curl_easy_strerror(res)) + ": " + url);
 		}
 
 		if (fetchMode == FetchUrl::MODE_JSON) {
@@ -129,10 +129,11 @@ std::string FetchUrl::fetch(std::string url, std::string icaoCode, std::string d
 		std::regex("[^a-zA-z0-9]"),
 		""
 	);
+
 	date = std::regex_replace(
 		date,
 		std::regex(":"),
-		std::string("%3A")
+		std::string("%%3A")
 	);
 	if (lowercase) {
 		transform(icaoCode.begin(), icaoCode.end(), icaoCode.begin(), ::tolower);